Between White and Roberts Essay Example for Free

Among White and Roberts Essay Between the engaging exposition Once More to the Lake by E.B. White, and the story paper How to Say Nothing in 500 Words by P.M. Roberts I see the engaging paper as undeniably all the more fascinating to peruse for the manner in which it is composed interests to the faculties of the peruser. The two expositions, in any case, convey great legitimacy and are composed quite well. The article that is as of now being introduced is an understanding of the likenesses and contrasts between the styles of these two expositions, and the effect they have on the peruser too. Among the significant contrasts between the two articles is how they are organized. In the paper â€Å"How to Say Nothing in 500 Words† Roberts utilizes nine distinct headings identifying with the key components of what he is expounding on. He separates every segment of what he considers to be acceptable acts of composing with each segment comprising of its own thought. He utilizes this strategy to introduce different thoughts relating to a similar general subject of the article. Utilizing headings to isolate thoughts and focuses is a decent method to introduce data unmistakably, yet it likewise gives a paper an indifferent and formal inclination that generally easygoing or normal perusers don't identify with. In â€Å"Once More to the Lake†, in any case, White doesn't separate thoughts into various headings. The story he tells in his article advances forward without being separated into different thoughts, and the general subject doesn't change all through the paper in any significant manner. The whole exposition peruses like it is its own section of a book. It gives the peruser a familiar story through and through. Another enormous distinction between these two expositions is in the tone and language that the creators use. Roberts utilizes a generally formal tone and language all through the vast majority of his paper. There are a couple of spots where he utilizes gentle diversion to keep the readers’ intrigue, however his dry tone blended in with the subject his paper is fixated on limits the viability of his endeavors. One such endeavor at humor is the place he talks about a collegeâ professor reviewing papers in the sentence, â€Å"As he peruses paper after paper all p latitude something very similar in nearly similar words, all bloodless, 500 words dribbling from nothing, he considers how he permitted himself to get caught into instructing English when he may have had a cheerful and fascinating life as a circuit tester or a certainty man.† (P.M. Roberts) He has a dry comical inclination that leaves the peruser asking why he even takes a stab at humor much of the time. White uses a casual tone in his article, and uses language that interests to the readers’ faculties. He makes no endeavors at humor in his exposition like Roberts does, yet he rather paints pictures of landscape with words in abundant detail. The profundity and detail with which he composes blends the readers’ feelings and recollections in the manner he recounts his own recollections. He takes the psyche of the peruser on an excursion with him as he describes recollections of his adolescence. The tone he utilizes is one that is dismal and genuine, yet in addition very easygoing. â€Å"Summertime, gracious mid year, example of life permanent, the blur evidence lake, the forested areas unshatterable, the field with the sweet plant and the juniper for all eternity, summer without end; this was the foundation, and the life along the shore was the structure, the houses with their honest and serene structure, their small docks with the flagpole and the American banner glidin g against the white mists in the blue sky, the little ways over the underlying foundations of the trees driving from camp to camp and the ways driving back to the toilets and the jar of lime for sprinkling, and at the gift counters at the store the scaled down birch-bark kayaks and the post cards that demonstrated things looking somewhat better than they looked.† (E.B. White) It is with the utilization of this sort of language that White fills the composing canvas, just as the reader’s contemplations, with the nitty gritty pictures of the environmental factors of the lake. The topic between the expositions by Roberts and White is one more uncommon contrast. â€Å"How to Say Nothing in 500 Words† is an educational account paper about what to, and what not to do in the composition of a school exposition. It is a carefully scholastic article. It covers various purposes of what sort of language and thoughts to use in a school level paper. The area of his exposition that he names â€Å"Call a Fool a Fool† can without much of a stretch be summed up as him attempting to get over that one should state what they think about an issue paying little mind to what they think the educator evaluating the paper or any other individual that may peruse it would consider what you need to state. Heâ basically expresses that in the event that it is your assessment, at that point state it without stressing that it might insult anybody that may not have a similar view. The topic of Roberts’ paper is a subject that lone an understudy would really think to find out about. The topic of the article by White, in any case, is close to as far the other way as you can get from Roberts’ paper about composing an exposition about school football. White’s article â€Å"Once More to the Lake† is about his encounter with his child back to a similar lake that his own dad took him to each late spring with his family while he was growing up. He portrays in detail the progressions that have happened in the numerous years since he had been returned to the lake, and the occasions he had with his family in his childhood just as the time he is going through there now with his own child. â€Å"Inside, everything was similarly as it had consistently been, with the exception of there was more Coca Cola and less Moxie and root brew and birch lager and sarsaparilla. We would exit with a container of pop each and now and then the pop would blowback up our noses and hurt. We investigated the streams, discreetly, where the turtles slid off the bright logs and dove their way into the delicate base; and we lay on the town wharf and took care of worms to the manageable bass. Wherever we went I experienced difficulty making out which was I, the one strolling next to me, the one strolling in my pants.† (White E.B.) The manner in which he depicts and discusses his environmental factors and the little undertakings that he and his chi ld leave upon makes it apparent that he really thinks about the story he has composed, and that the whole arrangement is a nostalgic excursion through his over a wide span of time. The sentiments that he unmistakably has while composing his paper is something that about any peruser can identify with. Since the major differentiating focuses between the two papers have been introduced we should proceed onward to the similitudes, however there are close to no likenesses by any means. The most conspicuous closeness between them is essentially the way that the two creations are viewed as articles. They are written in totally various styles on totally various subjects, and in view of a totally extraordinary understanding crowd. It tends to be stated, in any case, that the two articles are appropriately composed for their target group, and one could likewise contend that the expositions are comparable with respect to the way that the two papers give the peruser something to consider in the wake of having perused the creations, however that would arrive at exceptionally far to discover some type of closeness just for having the option to state that they are comparative in some design. It is anything but difficult to sayâ that the two expositions differentiate in significant manners, yet it isn't so natural to state that they look at in any huge manner. The papers â€Å"How to Say Nothing in 500 Words† by P.M. Roberts, and â€Å"Once More to the Lake† by E.B. White are both elegantly composed, however the elucidating article by White is the unrivaled of the two for his utilization of effectively comprehended graphic language and the consistent progression of his thoughts and contemplations on the paper making for a simple and agreeable read. His paper is additionally expounded regarding a matter that almost any peruser can identify with somehow or another while the exposition by Roberts is pointed more at a specific segment. Roberts likewise utilizes a â€Å"matter of fact† sort of tone that in the event that he had not presented a scramble of diversion to a great extent all through his article would have made it too specialized to even consider keeping the normal peruser intrigued enough to peruse the entire sythesis while the paper by White attracts the peruser and leaves them needing more. The article â€Å"Once More to the Lake† by E.B. White is an immortal bit of writing that the author of this paper firmly prescribes t o any peruser. References Roberts, P. M. (n.d.). Step by step instructions to state nothing in 500 words. Recovered from https://docs.google.com/record/d/1Gw_UcMT4u-ZSW7ZBN_RAMspZFex6o83oIbnvtuV-CM8/edit?pli=1 White, E.B. Again to the lake. Recovered from http://www.freewebs.com/lanzbom/EBWhiteLakeEssay.pdf

Digital Technology in the Film Avatar Assignment

Advanced Technology in the Film Avatar - Assignment Example The animals of Na’vi were for all intents and purposes structured as well as the entire Pandora, scene, verdure, and fauna add to the trustworthiness of the world (Valk and Arnold, 2013). In 2010 the film was chosen for eight British Academy Film Awards and won the BAFTA prize for Best Production plan and novel visual result. Stereopsis is an optical hallucination where our mind imparted our eyes the sign to envision a two-dimensional article as a three-dimensional item. This optical figment has been utilized as a stunt in the 3D film Avatar. The film has utilized cutting edge dynamic glasses one next to the other fluid gem show (LCD’s) instead of focal points. The two LCD’s opened and shut on the other hand and synchronized with the pictures on the screen by means of radio transmitters in the performance center along these lines prompting the mind of the watcher to frame a three-dimensional hallucination. Aside from barely any groupings, there was no camera utilized in the studio where Avatar was made. The actor’s development was recorded by movement catch which fit their body developments and outward appearances. James Cameron coordinated the computerized picture of the characters with a 3D picture of the virtual condition of Pandora created progressively so he could consider the To be world as he coordinated the developments of the entertainers and could redo a scene on the off chance that he didn't care for it (Straubhaaar,2013). Enhanced visualizations can be portrayed as activity done on the side of â€Å"live activity plates† and it is basically about environmental factors and noncharacter elements. Symbol takes this thought further. The innovation of enhanced visualizations causes us to accept that dream places like that of Na’vi’s Pandora as portrayed in Avatar exists actually. From the lovely scene of Pandora to the rich grand blue skin of local, to the strategies utilized in fight scenes, Avatar was a vehicle for visual joy. Visual symbolisms have assumed a critical job in the film. There was a visual comparability between the â€Å"cryo-pod† from which Jake, the hero develops and the coffin wherein his brother’s body was incinerated delineates the association between them. Symbol has utilized racial generalizations about race and personality and offered solid female portrayal. The basic gathering of Avatar holds both wonder and frustration in light of the fact that in spite of the fact that the film utilizes 3-D computerized execution catch it has been gotten hold by antiquated storyline (Grabiner, 2012). Thomas Schatz noticed that commercialization of film writings agrees with the move from character to the plot. The risk according to him is that the movies are consistently depoliticized as noted in the film Avatar where colonialist and radical subtext has been refuted by the attention on scene, activity and enhancements. The film’s story assumes an auxiliary job and the perplexing portrayal is supplanted by spectacularisation of account (Valk and Arnold).

Factors affecting intellectual development

Components influencing scholarly improvement There are two factors that enormously influence knowledge: 1. heredity 2. condition - Whichever has a greater impact stays a discussion up to this point since certain investigations demonstrated that heredity affects insight while a few examinations indicated the inverse. The significant point is that the transaction of both heredity and condition is basic for most extreme advancement of the scholarly capacities of the person. Different elements influencing Intelligence: 1. CultureDifferent societies cultivate various examples of capacity. For example, understudies from Sri Lanka demonstrated higher score in verbal capacity than the Americans. - This can be clarified by the way that in Sri Lanka, the savants and the artists were respected instead of the researchers or architects. 2. Sex It isn't accurate that guys are more keen than females. In any case, considers show that young men exceed expectations young ladies in spatial capacity, in critical thinking, and numerical capacity while young ladies exceed expectations young men in memory, thinking, and fluency.The contrast isn't expected to tackle issues since they will be the leaders of the families. Young ladies have been prepared to accomplish light work since they will be the homemakers, at any rate. 3. Wellbeing Studies have indicated that high IQ goes with sound state of the body. - In school; sound kids have better odds of learning, they can move better in their examinations and they are regularly dynamic and energetic about study hall exercises. 4. Race No one race is enriched with preferable insight over others.Differences in accomplishment of races are because of better chances and offices found in created nations. 5. Financial status Studies have demonstrated that youngsters from higher financial scored higher in insight tests. - Again, more prominent chances and cash represent this. The rich can send their youngsters to better schools and can give animat ing condition to their kids. Be that as it may, there are prodigies and boneheads among them as there are among poor people. By xhacura

Whats Truly Going on with Critical Thinking Essay Topics

What's Truly Going on with Critical Thinking Essay Topics The most frequently encountered paper writing service that the vast majority of our clients require is essay writing. If you're fighting to find one, try out an excellent essay writing service to conserve time. Having highlighted the above, the following advice will permit you choose a topic for writing university essays that are of high quality and relevant in the contemporary subject of specialty. Sit down and evaluate every benefit provided by the very best companies you've found with the support of your preferred search engine. A specific amount of descriptive writing is vital, especially in the previous portions of the essay or assignment or dissertation. You're lucky as there are tips you could follow and serve as your guidelines in writing the lengthy essay. Hence, you've been provided with the simplest topic for problem solution essays, you can choose any on of the aforementioned and get started writing your e ssay immediately. If this is the case, you've seen an overall illustration of a crucial response essay. New Ideas Into Critical Thinking Essay Topics Never Before Revealed An essential essay is a part of writing in which someone gives his whole perspective about at topic whether it's good or bad by doing relevant research on it. It is not an easy thing to master but have enough scope for a good writer. It aims to give writers a chance to improve their critical writing abilities. A critical thinking essay is a superior method to share and talk about the literature you have read. The Bad Side of Critical Thinking Essay Topics In most instances, you will need to develop a topic that will make it possible for other people to understand your perspective, and telling them to think that what you write is true. It's advised that you ask your teacher in the very first location for any sort of queries. Well, the reply is quite simple, it hardly really matters! To make sure that yo u will see a complete answer to every question, we've got a support team that is always online. Want to Know More About Critical Thinking Essay Topics? Critical essay writing is offered to the students by the teachers to observe the way the understanding of the essential topics, does the student have. The above is of amazing significance, especially to students who think that critical essays should concentrate on the negative facets of a subject. If you've already graduated from college or university and are trying to find a fantastic job, you will need to get a persuasive resume to impress your future employer. A photo essay is a group of pictures with a total topic or theme. The conversation will result in a deep topic people value. The content needs to be clear and simple to grasp. When you have evaluated and analysed different sources, you need to have a very clear field of reasoning which leads up to your conclusions, depending on the evidence. It's recommended that you just select the topic that you are able to deal with, for instance, if you're not t sketching the personality characteristics then you ought to better not elect for it. Let's take climate change for instance and whether it's solely due to human mistreatment of Earth. It is very important that the support their reasoned argument and experimentation as a way to persuade the readers. Just take the shoes of the expert, forget that it might be your very first essay, being confident increases your odds to generate a very good paper. Make sure you read the above mentioned points and adhere to every step whilst crafting your paper. If you're interested in the subject of your paper, then you have more chances to allow it to be successful. You've got to guarantee accuracy and dependability of all you enter in your paper and the sole method to do so is to understand the topic. Let's review how to compose the very best essay. Possessing a goal is indeed important to writing a goo d important essay and it is crucial to outline it clearly. Banking essays can be real fun to play with if you've got an exhaustive understanding about the discipline and have keen interest in writing, so should you believe you cannot write decent banking essays than again you're incorrect. Following are a few of the suggested sociology essay topic for those students that are unable to choose a great topic for their assignment. Academic papers can't contain any signals of plagiarism. As a consequence, the simple job of creating a title for your essay will be problematic. If you would like to ease your tension of looking for hours and hours for easy essays topic selection then you've reached at the appropriate place. So How About Critical Thinking Essay Topics? So far as essay structure goes, a 4 or 5 paragraph essay based on the number of points you might want to argue is an excellent start. As you may have already understood, the heart of a critical lens essay is a crucial lens itself. Let's review the essential elements of success ful important lens essays. You don't need to fear trying since it's from mistakes that we learn from. The idea of learning how to compose a critical thinking essay can be rather frustrating. In an issue of speaking, picking out persuasive essay topics is similar to telling yourself what you need to convey to the rest of the planet. No matter how much you'll be taking that day, there are a few ways that can help you get through the essay with a very low quantity of stress. There is a lot of information, but attempt to select only the most relevant. In critical writing, you will need to evaluate and analyse the info from sources, rather than simply accepting it as being true. Some topics aren't simple to address and there isn't much information available about them, on the flip side, there's a plenty of material available on a number of the research essay topic but the issue is that they are rather common. In order in order to construct and pursue the interest of the graduat e essay vividly, you also need to opt for a topic with source materials readily offered. Thus, you've got to be quite careful whilst recommending the ideas. If you've got many choices, what you just have to do is to select. The very best advice, however, is to just locate an interesting means to broach everyday questions. If you're struggling to discover a nice topic, here's a range of 15 for you to pick from.

Review of the Relevant Literature and Industry Specific...

Review of the Relevant Literature After briefly reviewing the basic aforementioned barriers, as follows, the researcher will proceed to discuss industry specific barriers, intertwined with the review of relevant literature; and the use a combination of analysis described in the Program Outcome section of this project. Introduction Pilots take an active and important role in the aviation industry and are expected to possess critical thinking and technological skills. Schools of aviation are required to provide students with both theory and technical opportunities relative to the scope of aviation. Training institutions who teach 141/142 training programs foster critical thinking and technological skills through ground based instruction as†¦show more content†¦Background and Significance Simulation was initially used by the airlines and military personnel for training purposes. The first ground-based flight simulator, named the Link trainer, was invented in 1929 by Ed Link (Nickerson Pollard, 2010). Edwin Albert Link can be said to be the pioneer of simulation implementation. He is most remembered for inventing the flight simulator, which was then commercialized in 1929 and called the Blue Box or Link Trainer. Using simulators for training maximizes a students learning without real life threats. Simulators are able to replicate scenarios that could damage an actual aircraft and cause significant injury or even death. The replication of actual flight in simulation would not be complete without motion. Disputes towards efficiency of motion versus non-motion platforms have been debated within the aviation training community for many years. Many studies have been made regarding the importance of motion versus non-motion. Motion platforms can provide motion for roll, pi tch, heave, surge, yaw, and sway. Motion platforms also can provide crucial over-controlling feel characteristics and play a crucial role in takeoff andShow MoreRelatedThe Content For Elearning Environments1547 Words   |  7 PagesThis is a critique of â€Å"Dose Culture Matter? A qualitative and comparison study on eLearning in Germany and China†. I am attracted to this article because I work in the eLearning industry doing visual content for eLearning environments. This study is relevant to my career path and is a topic of interest for me. Although my current work does not transcend the boundaries of Canada, I think as national boundaries become less significant to information products that making culturally sensitive eLearningRead MoreAdoption and Implementation of BIM by Small and Medium Enterprises2013 Words   |  8 PagesSTRUCTURE This research paper looks to investigate the adoption and implementation of BIM by SMEs. The following is a brief look at how this research paper will be structured: †¢ Chapter 2 provides a methodical review of relevant literature in the field of BIM, the perceived barriers with its adoption and implementation by SMEs and an analysis of the data found. †¢ Chapter 3 sets out the research strategy inclusive of the challenges found alternative methods, and scope of this research paper. Read MoreDeterminants of Survival of Newly Created SMEs in the Brazilian Manufacturing Industry: an Econometric Study1081 Words   |  5 PagesThe empirical literature, focused on developed countries, and has triggered controversies associated with size measurement and estimation issues [see e.g. Davis et al. (1996) and Davidsson et al.(1998)]. Evidence seems to indicate, as expected, that the net job creation effect is likely to be stronger in service industries. 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The Creation Of Online Networking - 1583 Words

Introduction Many groups around the world hold similar opinions; have similar likings and link to each other in different ways, although without certain assistance it becomes impossible for these people to connect. The creation of online networking becomes a forum where individuals can meet others who have similar or conflicting opinions, where you can learn, and teach, gain and lose; it initially allows for individuals to interact with one another from around the world for whatever purpose. This essay will examine how large social networks, specifically focusing on Bunz, work to connect and create communities across the city by which people of both parties can benefit from the trade. This will be analyzed through first, examining the†¦show more content†¦Personal Experience with Bunz Initially the idea of going out and trading something with a random stranger from somewhere in Toronto seemed a bit questionable to me, although once joining the application Bunz and seeing what people had to offer, it seemed like a win-win situation. To be able to trade something from my home that I did not need and receiving something of use seemed farfetched before taking a look at how easy and accessible Bunz was. In total I made two trades, the first trade I conducted was that of a branded sweater for a wool scarf. The initial costs for both items were a bit different; the sweater I traded cost about $20 more than the scarf. The second trade was of my set of Lord of The Rings books, for a single fantasy book. Impression Management Goffman devised the idea that when in case of an interaction, individuals are social actors who put up performances, projecting specific identities of themselves, usually aiming for the approval of others (Karp et. al., 2016). In the case of my interactions with fellow Bunz users, following social norms, I messaged the traders and presented my offer trying to present my best face (Karp et. al., 2016), so we could come up with a beneficial trade, these interactions corresponded with Goffman’s dramaturgical view. The dramaturgical view states that individuals systematically control the information they provide to others about themselvesShow MoreRelatedThe Striking Amount of Fake Online Profiles in Social Media953 Words   |  4 Pagesof social media, a now common problem surfaced and continues to grow. Fake online profiles are an ongoing issue today. People are creating fake online profiles to pose as another person and in some cases harass another perso n. 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The idea is to use social networking platforms, including Facebook, Twitter, LinkedIn, as well as blogs, collaboration environments, and YouTube, to tighten the communication links among consumers, employees, and suppliers and thereby increase their emotional involvement in the firm and the creation of value. In short, everyone involved in value creation within a firm will be more tightly connected to others. Customers will provide feedbackRead MorePositive And Negative Effects Of Social Networking Addiction1024 Words   |  5 Pagesto the online world. Many adolescents spend most of their time online versus offline. Therefore, one can consider these adolescents as a social network addict, a person who spends a fair amount of time on one or many social platforms. Throughout the three articles, â€Å"Social Networking Addiction: An Overview of Preliminary Findings† by Mark Griffiths, â€Å"Social Network Sites: Definition, History, and Scholarship† by Nicole B. Ellison and â€Å"Taking Risky Opportunities in Youthful Content Creation: Teenagers’Read MorePositive And Negative Effects Of Social Networking Addiction1020 Words   |  5 Pagesattachment to the online world. Many adolescents spend most of their time online versus offline. Therefore, one can consider these adolescents as a social network addicts, people who spends a fair amount of time on one or many social media. T hroughout the three articles, â€Å"Social Networking Addiction: An Overview of Preliminary Findings† by Mark Griffiths, â€Å"Social Network Sites: Definition, History, and Scholarship† by Nicole B. Ellison and â€Å"Taking Risky Opportunities in Youthful Content Creation: Teenagers’Read MoreSocial Networking And Its Effect On Society1303 Words   |  6 PagesIn a world where there is such a strong emphasis placed on technology, online social networking has taken on society by storm. 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These two are the most common sites that people use to communicate and they spend hours in front of screens checkingRead MoreDiscuss the Influence That Social Networking Plays in Society Today? How, and to What Extent, Has It Re-Defined Social Relationships and Is This Generationally Specific?1144 Words   |  5 PagesDiscuss the influence that Social Networking plays in society today? How, and to what extent, has it re-defined social relationships and is this generationally specific? Social Networking plays an important role in society today; it will be argued that social networking has redefined social relationships and that this effect is generationally specific (Salman,2009) Social Networking sites such as Facebook have had a profound effect on personal relationships. The twenty first century is an imprisonedRead MorePersuasive Speech : Social Networks960 Words   |  4 Pagesbased and offers multiple ways of interaction between users, such as online chats, exchange messages, e-mail, video, voice chat, file sharing, blogging, discussion groups, and so on.With the advent of social websites such as this, teenagers can connect or communicate quickly than before, the creation of information and communication technologies. Social networking service that focuses on the development and validation of an online social network to a community of shared interests and activities.

Critical Appreciation Of William Blakes London Essay free essay sample

, Research Paper 22nd September 2000 A Critical grasp of William Blake # 8217 ; s # 8220 ; London. # 8221 ; William Blake who lived in the latter half of the eighteenth century and the early portion of the 19th century was a poet, a philosopher, a extremist, an creative person, and a great mind ; who was able to convey about # 8220 ; singular consequences with the simplest of agencies # 8221 ; in all of his work. He wrote his verse forms with deep personal emotions but if we look farther and disregard the prophetic qualities we discover a farther intended significances of a strong political and societal degree. He was a critic of his ain epoch but his poesy besides strikes a chord in ours. He was one of several poets of the clip who restored emotion and feelings into poesy, and so was one of the first # 8220 ; romantics. # 8221 ; Blake lived during a period of intense societal alterations, the industrial revolution, the Gallic revolution and the American revolution all happened during his life-time. We will write a custom essay sample on Critical Appreciation Of William Blakes London Essay or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Blake was witness to the transmutation of a agricultural society to an industrial society, which is where the footing for some of his verse form base. As an illustration, we may look towards William Blake # 8217 ; s # 8220 ; London # 8221 ; from his vocals of experience, here Blake remarks on a metropolis he both loves and hatreds, it shows his disapproval of alterations which occurred in his times. Blake describes the sufferings that the Industrial revolution and the breakage of the common adult males ties to the land consequences in. He uses many methods to derive the perfect description of how he saw industrial # 8220 ; London # 8221 ; but the most outstanding method is his usage of imagination. His first usage of imagination is the first and 2nd lines of the first stanza, he uses the words # 8220 ; charter # 8217 ; d streets # 8221 ; and # 8220 ; charter # 8217 ; d Thames. # 8221 ; A charter is a legal papers which gives legal powers to the council of a town or metropolis which allows them to be able to make there ain Torahs within the boundaries of that topographic point. The imagination suggests that non merely do the streets of London have to follow the regulations but that the River Thames has to be regulated every bit good. The lawgivers have tamed and controlled a free flowing river. This usage of imagination emphasises that everything in the metropolis including natural forces are enslaved by the metropolis. In the following line, # 8220 ; Marks of failing, Markss of suffering, # 8221 ; there could be a drama on words, # 8220 ; Mark # 8221 ; means both # 8220 ; to see # 8221 ; or # 8220 ; to detect # 8221 ; but so once more there could be another signif icance ; like a physical grade upon person # 8217 ; s face like a mark of heartache or wretchedness. The usage of the word # 8220 ; mark # 8221 ; I think, is intentionally repeated to sound like the blows of a cock. Blake uses this imagination to underscore the hurting which industrial London is implementing on the hapless, physically and mentally. The usage of # 8220 ; mind-forg # 8217 ; vitamin D manacles # 8221 ; in line 8 is used to depict why the people are so unhappy, this is because they are non free as there lives are being controlled by oppressive or restrictive thoughts within their ain heads and created by the heads of others. Besides by utilizing the # 8220 ; handcuff # 8221 ; the word sounds heavy, merely like their predicament. # 8220 ; Black # 8217 ; ning Church appalls # 8221 ; is a vivid and scarey image. The church could be blackened literally because of the carbon black from London # 8217 ; s chimneys, or it could be because the Sun is puting and the lineation of the church can be seen in the attenuation visible radiation. Blake # 8217 ; s usage of # 8220 ; Black # 8217 ; ning # 8221 ; could be symbolic ; the church which should be a beginning of moral heat and visible radiation, is seen as cold and dark. There could be another significance to the word â€Å"appalls† like a chill over a casket so it is used to underscore that the church ignores what it doesn’t want to see. Another shocking and surprising image is â€Å"Runs in blood.† This is where the hurt soldier’s blood is running down the walls of the swayers for which he has been contending, so it emphasises the fact that the hapless were being blocked out by the authorities with no agencies to populate, and many to decease. # 8220 ; The vernal prostitutes curse # 8221 ; is a contradicting image which makes you believe how could a prostitute be vernal? It shows that even kids were subjected to the offenses of London. The expletive could be seen in two ways, it could be that she is literally cursing but it could besides intend that the unhappy miss is cussing or faulting the difficult, cold universe she is populating in. the most powerful usage of imagination in this verse form to me is the oxymoron, # 8220 ; blights with sighs the matrimony hearse, # 8221 ; and image in which opposites collide with one another. A hearse, a vehicle for transporting the dead to the grave being used for matrimony. Sighs are besides more likely to be heard at funerals than matrimonies, but here Blake mixes the two together. At one degree it could be that Blake is reasoning that it is incorrect for harlotry to be in the same society as a respectable legal matrimony. At another it could be that he is proposing that work forces do travel to cocottes where matrimony is cold and unloving, or where sexually repressed. Yet, at another degree, blight can intend # 8220 ; diseased, # 8221 ; and in the 18th century STD # 8217 ; s were common, and could be fatal. The hearse could be a existent 1. In whatever context it was written it is a peculiarly strong line which symbolises the decease or incorrect making in industrial Lon don. Blake uses much imagination of darkened things to emphasize how black and glooming life is, with no visible radiation at the terminal of the tunnel. The beat of the verse form is really slow and thumping which emphasises the darkness of London and the gait of London at the clip. The punctuation in the verse form increases the awkwardness, which enhances the consequence of being trapped in a universe and there being no manner to get away. The rhyme strategy is changeless throughout the verse form which adds to the invariable buffeting which is besides achieved through Blake # 8217 ; s usage of iambic pentameter. His repeat of the word # 8220 ; every # 8221 ; in the 2nd stanza seems to emphasize the buffeting of the verse form further. Blake # 8217 ; s usage of imagination, repeat, punctuation and rime all work together to bring forth a powerful work of art in my eyes. It shows how times truly were in London and how it was impossible to interrupt out of the # 8220 ; handcuffs # 8221 ; which society had set for the hapless. London and many of Blake # 8217 ; s other plants with a similar subject, peculiarly those from vocals of experience work stoppage a peculiar nervus for those who are populating in a society where the cost of life compared with income is steadily increasing, where diseases are going progressively common, and where the populace is going progressively disillusioned about the dependability and trustiness of politicians. Poems like London are those which can still be applied to metropoliss today, which seem to be quickly desensitizing itself to the # 8220 ; Markss of failing, Markss of suffering # 8221 ; which we are good accustomed to seeing on faces of passers by today.

Behaviorism Definition

Introduction Behaviorism may be defined as a theoretic foundation which is rooted in psychology and which has a deliberate emphasis on observable, as well as determinable behavior as its major unit of study (Luthans, Youssef, Luthans, 2005).Advertising We will write a custom term paper sample on Behaviorism Definition specifically for you for only $16.05 $11/page Learn More It should be noted that behaviorism analytically explores the relationships that exists between the behaviors of an individual as well as environmental contingencies. It should also be noted that the study as well as behaviorism practice lays much emphasis on the prediction and management of behavior and therefore is especially applicable to organization research (Newby, Stepich, Lehman, Russell, 2006). The behaviorism model is different from the common theories of cognitive psychology because behaviorism isn’t concentrated on internal affective or cognitive processes as well as incidental measures of attitudes, feelings or beliefs. While approaches that are cognitive based try to not only understand but also to explain the complicated causes and also the complexity of the behavior of human beings, behaviorism has its basis on the foundation that human behavior is a generally the function of both the environmental contingencies and consequences (Newby, Stepich, Lehman, Russell, 2006). The historical building blocks of Behaviorism Behaviorism has four major historical building blocks. These main introductory contributions include the experiments of classical conditioning that were done by Pavlov (1849-1936), the law of effect which were done by Thorndike (1874-1949), Watson’s experiment on human conditioning (1878-1958), as well as conceptualization and work of operant conditioning which were done by Skinner (1904-1990). It should be noted that in organizational studies, the behavioral application that is widely applied is that which is contained in the book of Luthans and Kreitner’s (1985) called the Organizational Behavior Modification and Beyond (Newby, Stepich, Lehman, Russell, 2006). So as to critically observe behavior, a number of behaviorists are suggesting that the possibility of determining the stimulus as well as the response have to be very high. Stimulus identification as well as response usually acts as the determinant for behavior observation.Advertising Looking for term paper on psychology? Let's see if we can help you! Get your first paper with 15% OFF Learn More It is believed that if the identification as well as the response of stimulus is possible, it will also be possible to study, understand and also to modify behavior. Due to this, behaviorism is sometimes called stimulus-response psychology since it majorly emphasizes on the study of external environmental conditions of individuals which make the individuals’ behavior to be in certain ways. Behaviorists have the belief t hat the behavior of human may best be understood through the study of particular behaviors. Similarly, behaviorists have the thought that the traits of human beings like character, integrity as well as personality are usually not determined internally by the individuals, but these traits results as a result of the individuals behaving in some ways. The traits are also established via behavior patterns that are usually developed via environmental conditioning. They also have the belief that a careful study of the development of behavior is capable of providing a clear understanding the creation, control and prediction of desirable conditions as well as behaviors. The concepts of behaviorist are connected to the numerous beliefs of many philosophical systems. It should be noted that behaviorism and realism are similar because both of them have faith in the significance of factual as well as observable aspects. Realists and behaviorists also have the belief that factual, as well as obs ervable aspects are capable of providing a foundation on which guidelines as well as laws of universal importance may be established. The theory of materialism is also connected to behaviorism. The belief of materialist that the explanation of everything as far as motion and matter are concerned is possible is comparable to the approach of behaviorists which sees humans in physiological or biological perspective. Though both materialists and behaviorists have the belief that the behavior of man in a specific ways is based on physical makeup, the behaviorists lays much emphasis on the outcomes that the environment has on the behavior of man (Standridge, 2002). Ivan Pavlov’s view on Behaviorism Ivan Pavlov, who was one of the early behaviorists who first attained scientific recognition due to the research he did concerning digestive glands. Nevertheless, he has been remembered because of the research he conducted concerning reflex action among animals and humans. He has also be en remembered because of devising several experiments on conditioning. Pavlov who is also said to be the father of the famous conditioning theory, highly influenced behaviorist movement through his researches concerning conditioned reflexes, both in animals and in humans (Standridge, 2002).Advertising We will write a custom term paper sample on Behaviorism Definition specifically for you for only $16.05 $11/page Learn More In his research concerning conditioned reflexes, he organized a dog so as to measure the â€Å"psychic secretion† quantity or the quantity of saliva which it secreted. Pavlov used the term â€Å"Psychic secretion† to refer to gastric juices which were secreted when food stimulated the mouth. He started by determining the physic secretion’s quantity in reaction to food. He made an observation that upon giving the dog food, the quantity of psychic secretion increased. As this experiment moved on, a stimulus that was neutral, which at first was not having any influence on psychic secretion’s amount, was repeatedly added as the dog was feeding. After a regular presentation of the stimulus food, the food substance was eliminated and the stimulus alone was presented. Later, Pavlov established that when the stimulus only was presented; psychic secretion’s level increased. With food, stimulus, that was at first ineffective, later produced very robust psychic secretion. This is what Pavlov called conditional reflex or conditional response. The experiments that were conducted by Pavlov were known as â€Å"classical conditioning or the â€Å"laws of conditioning†. It should be noted that Classical conditioning is basically the behaviors that are learnt due to experience (Newby, Stepich, Lehman, Russell, 2006). John Watson’s view on Behaviorism John Watson is also a highly powerful early behaviorist who is also referred to as one of behaviorism founders. He was in disagreem ent with the movements of functionalism as well as structuralism. Watson was influenced by the theories of Pavlov. He viewed psychology as a division of natural science which ought not to have studied mental consciousness and processes. Watson wrote a number of books which advocated for behaviorism and which were also in contradiction to introspective philosophy. This philosophy stated that psychologists were capable of gathering data and information from the consciousness or minds of individuals. Watson was of the idea that psychologists ought to study behaviors which are directly observable, and not the mental consciousness and processes (Staddon, 2001). The radical views of Watson concerning behaviorism became his weakness as well as his strength. He had the clarity, energy, as well as force which were needed for success in the promotion of his ideas. Conversely, he deviated from the conviction which he had that the amalgamation of environment and heredity formed the foundation o f the behavior of human beings to the fundamental opinion that every behavior was due to the environment of the individuals. He moved so far and suggested that emotions, thought, as well as instinct were merely inner bodily adjustments patterns. He also made a proposal that every emotion progressed via the conditioning of some innate emotions— anger, love as well as fear, and also that nothing shouldn’t have been called natural instinct (Powell, Symbaluk, Macdonald, 2005).Advertising Looking for term paper on psychology? Let's see if we can help you! Get your first paper with 15% OFF Learn More It should also be noted that Watson also had the belief that the major stimulus which determined behavior was the environment. Again, he had the belief that if he was capable of controlling the environment or surrounding of kids, he was capable of molding the child to become the type of person that he needed. The infants at Johns Hopkins Hospital were studied by Watson and he made a remark that if given any child having a very healthy body, molding the child to become any type of expert that he chose could have been very easy. It should be noted that behaviorists are in agreement with the statement of Watson that it is capable to alter, modify and also to control behavior by using reinforcement (Newby, Stepich, Lehman, Russell, 2006). Burrhus Frederic Skinner’s view on behaviorism Skinner, like Watson had the belief that it is possible to control behavior through reinforcement. In a book written by him (Beyond Freedom and Dignity), he generates a lot of controversy through h is statement that the freedom of human beings is merely a myth. Burrhus was of the argument that any human cannot be free; but rather, they are the products of the environment to which they are subject. He also stated that they are subject to the environmental forces that are in existence and which shape and mold them. References Newby, T. J., Stepich, D. A., Lehman, J. D., Russell, J. D. (2006). Educational Technology for Teaching and Learning (3rd Ed.). Upper Saddle River, New Jersey: Merrill/Prentice-Hall. Luthans, F., Youssef, C., Luthans, B. (2005). Behaviorism. In Nicholson, N., Audia, P., Pillutla, M. (Eds.). The Blackwell encyclopedia dictionary of organizational behavior. London: Blackwell. Powell, R. A., Symbaluk, D. G., Macdonald, S. E. (2005). Introduction to learning and behavior. Belmont, CA: Thomson/Wadsworth. Staddon, J. (2001). The New Behaviorism: Mind, Mechanism, and Society. Philadelphia: Psychology Press. Standridge, M. (2002). Behaviorism. In M. Orey (Ed.), Emerging perspectives on learning, teaching, and technology. Web. This term paper on Behaviorism Definition was written and submitted by user N0rr1nRadd to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Reservoir Dogs Essays (680 words) - Concept Albums, Feces

Reservoir Dogs Essays (680 words) - Concept Albums, Feces Reservoir Dogs Gangsters, violence, murder and corruption !!!!! If these are some of the things that you're into, then this is your kind of movie. Be ready to watch it more than once to be sure to get all the movie has to offer because it jumps from subject to subject and can be a little confusing. The movie on the whole was really great. It was filled with some pretty gory scenes and extreme violent content, Tarantinos' trademark. The way he portrays the real life aspects of crime and violence are unbelievable. I wonder if he experienced some of these things himself and that's why he has a realistic view of them. Then again, I can't really gauge how realistic any of these themes are because after watching this kind of movie it makes me feel like I lead a really sheltered lifestyle. Why does all the violence in Tarantinos' movies become so attractive to us normal people? I think it's because most of his material is underworld stuff. He deals with things we can barely relate to. Topics that are so far fetched to a "normal" person that they kind of hypnotize us into watching. Things happen in his movies that are so bizarre, we can't begin to imagine them happening to us in real life. The weird part is, many of these things DO happen every day. We all know there really are gangsters, mobsters and really low-life people that involve themselves in what we think of as underworld crime. Drug deals.... on a level so great... amounts we can't begin to comprehend. Murders, for whatever reason. Even the thought of hiring someone to kill someone else gives us a goose bump or three. In his movies it's almost like borrowing a cup of sugar from your next door neighbor. Chopping off someone's ear would repulse me and probably make me want to spew my lunch. Tarantinos' characters chop off ears then talk into them as if they were using ma bell. His characters attitudes are totally ruthless. They could give a shit if you were the cousin of the president or a nanny. They have a job to do and they do it. No holes barred, no questions asked, no thought given to actions or consequences. They are almost like robots, zombies of the underworld that have no emotions or respect for the value of life. You would think these characters are drugged or brainwashed, but they're not. It amazes me that people do this kind of shit as if it were just another day. It's as second nature to them as brushing our teeth every morning is to us. Belonging. Everyone likes to feel like they fit in. There is a certain comfort level in belonging to something, anything. Even if it is to a gang of criminal types. I think that's another reason we all relate or get captured by viewing these kinds of movies. I can only compare it to a fraternity; fraternity brothers all belong to an organized group. They have similar interests, goals and acquaintances. All Tarantinos' characters have these things in common. Although they aren't exactly what we would consider acceptable, they all still feel this common bond. It's a sick kind of thing though. When you think of all the things life has to offer, why would you want to involve yourself in all this complicated criminal shit? They jeopardize their own existence because even though they are considered members of the organization, they would snuff each other out in the blink of an eye if the right person told them to do it. !!!! I have to admit I was totally awed by his movie. I couldn't wait for the next scene to start. As a movie maker, his ideas and the way he presents them are phenomenal. He definitely captures his viewers. You don't even want to blink for fear of missing something. I would like to see him do a movie about topics that aren't so bizarre just to see if the movies would be as good.

Nursing -Activity homework Essay Example | Topics and Well Written Essays - 1250 words - 1

Nursing -Activity homework - Essay Example 345). Depending on the condition of the patient, monitoring should be either continuous or intermittently. Bubbling and swinging are assessed with the patient’s respiration. In normal respiration, the fluid within the tube rises with inspiration and falls with expiration (Paul and Williams, 2009 p.45). Absence indicates that the tube is blocked, or it is out of the pleural space. Intermittent bubbling in the water seal chamber shows an air leak when the patient coughs or exhales. Continuous bubbling indicates air leak between the patient and the drain. Volume, color and consistency of the drainage are monitored (Smeltzer et al., 2010, p. 234). The drain insertion site is also assessed for signs of infection and inflammation. The sutures are checked if they are intact and secure and that the dressing is clean and intact (Smeltzer et al., 2010 p. 252). The rationale for clamping the chest drain is to reduce the risk of tension pneumothorax. Smeltzer et al., (2010 p. 252) recommend disconnection of the chest drain in the case of sunction or the patient are ambulant. However, during the transport, the chamber should be kept below the patient’s chest level to enable draining (Smeltzer et al., 2010, p. 123). This allows gravity drainage and prevents backflow of fluid. However, Paul and Williams (2009, p. 13) suggest that clamping can also be done when the drainage bottle requires a replacement or to locate any air leak in the drainage system. Therefore, the suggestion that chest drains should only be removed when the patient is to be moved is false. If the water in the chest tube was—swinging but not bubbling or draining it means the air has been removed from the pleural space but that the pneumothorax has not resolved. When bubbling initially stops this should be further assessed by instructing the patient to cough. When monitoring for the patient with chest pneumothorax the bubbling shows the presence of air in

Are trauma centres best practice for the UK Essay

Are trauma centres best practice for the UK - Essay Example A look at the figures spent by NHS on treating injuries related to trauma is convincing enough to make one realise the importance of an effective trauma management, with efforts to also locate the source of these injuries (like speed driving), and effectively put a stop to them. Since road trauma is one of the major causes of death, it is also necessary for the government to take initiatives where road accidents can be reduced. During the late eighties specialists from the Royal College of Surgeons UK, had highlighted the fact that there are major flaws in the management of patients with serious injuries, and ineffective handling of the entire situation often leads to many untimely deaths, that are completely avoidable in nature. My article will examine the current conditions of trauma management and the services offered to patients in trauma within UK, and to ascertain the importance of the trauma services in this country, with main emphases on the transportation of patients using a mbulance services (pre-hospital care). Are trauma centres best practices for the UK? 1 Introduction 1.1 Background history Severe injuries, resulting from accidents like a car crash or after falling from great heights, are one of the most common causes of death amongst the UK youth. The chances of surviving the fatal accident, later followed by a complete recovery are dependent on the trauma care that the patient receives immediately after the mishap, and in the few following weeks, as he recuperates. In England and in other parts of UK, it has been observed that the most common cause of death from trauma is in case of road accidents. At an average count it has been estimated that annually there nearly 20,000 reported cases of severe trauma in England that results in an estimated 5,400 deaths, while many of the survivors suffer from long term disabilities, a majority of which are permanent in nature, thus demanding provisions for long-term care facilities (National Audit Office, 201 0, 4). The term trauma can be summarily defined as â€Å"physical injury caused by events such as road traffic accidents, falls, explosions, shootings, or stabbings. The term ‘major trauma’ is therefore used to describe multiple injuries involving different tissues and organ systems that are, or have the potential to be, life threatening. Trauma patients require specialist care from a multidisciplinary group of professionals† (The Royal College of Surgeons of England, 2007, 1). Death from major trauma (from severe multiple injuries) is a major cause in UK with almost 16000 dying in England and Wales alone each year (ibid). According to NHS Choice the term ‘Major Trauma’ may be defined as comprising of â€Å"multiple, serious injuries that could result in disability or death. These might include serious head injuries, severe gunshot wounds or road traffic accidents† (NHS Clinical Advisory Groups Report, 2010, 5). In scientific terms Major Traum a is exemplified with the use of Injury Severity Score (ISS), which gives certain values to â€Å"injuries in different parts of the body and totals

Ethical Lens Essay Example for Free

Ethical Lens Essay My personal ethical viewpoint is that I like to weigh out the pros and cons of any situation. Also I believe in fairness and being open-minded. This allows me to look at other people point of views, than I am able to come up with some kind of solution to the subject, topic, or problem. After using the Ethical Lens Inventory, my result indicates that my preferred ethical lens is the Reputation Lens. The Reputation Lens defines â€Å"consistent with the habitual development of sound character traits including habits of thoughtful reflections, good intentions and noble human virtues. † The values that take place in this lens are integrity, justice, courage, and civility. My blind spot consist of â€Å"Unrealistic Role Expectations.† When I am given a task or a job, I try to achieve this goal to the best of my ability. It includes me being very disciplined, loyal, honest, and fair. The fact that I believe that a consistent process results in a just outcome for all, I sometimes trust the process too much. Also I tend to forget that unequal access gives rise to unjust outcomes, even when the process itself is fair. My Strengths are I am compassionate, tolerant, good-natured, considerate, and strong-willed. I am an individual who respects humanity and the rights of others. I am an optimist, generous, adaptable, and a leader. I want to do what is right and what is fair. My weaknesses are I am not good in math, I can use a little more practice with my spelling, grammar, punctuation. Also I am a perfectionist; this can be good and bad in some situations. I tend to come down on myself pretty hard when I do not live up to my expectations. My other weakness shows when I become self-righteous. When I lose my compassion, it can be a bad day for those who are close to me. I value â€Å"rationality and sensibility equally.† Also I value loyalty, honesty, and having a since of purpose in life. Having a clear understanding of why I value these things in my life is vital to me. This can result in good behavior for me in my courses, family, friends, and my career. When using my personal ethics to determine a course of action, this can allow me to have a positive outcome, by being honest, fair, loyal, and being open-minded. Also this can enhance the chances for me to have a better course of action I can take to be able to excel in everything I try to accomplish.

The Corruptness of Power Depicted in George Orwells Animal Farm :: Animal Farm Essays

â€Å"History consists of a series of swindles where the masses are first lead into revolt by the promise of Utopia, and then, when they have done their job, enslaved all over again by their new masters†- George Orwell. Only one man has the insight and the genius to depict this. Only he understood that in the end, humans cannot defeat human nature, because it is inherit in themselves. In Animal Farm, the farm animals, fueled by Old Major’s speech, rebel against Farmer Jones. They set up a commune under the control of the pigs soon afterwards. But the pigs abuse their power and the animals end up being no better off than they were under Farmer Jones. Animal Farm, a parody of the Russian Revolution, is Orwell’s attempt to inform others about a purveying truth regarding human nature- that power is, by its very nature, corrupting. This is why â€Å"history consists of a series of swindles where the masses are first lead into revolt†¦ and enslaved all over agai n†. Old Major, representing both Marx and Lenin, is the catalyst for the revolution. He is a political thinker, creating the idea of Animalism. He describes the cruelty of man and how â€Å"man is the only creature that consumes without producing†. An image of Utopia is then presented, where all animals are equal. Soon after his death, the revolution occurs easily because of the ineptness of Mr. Jones and the support of the animals. Afterwards, the farm is run efficiently and the animals have a high quality of life because only they enjoy the fruits of their labor. They are led into revolt by the promise of Utopia. Soon afterwards, the pigs start to become selfish. They change the commandments to suit their selfish needs. Snowball and Napoleon become rivals. After Snowball is chased away by Napoleon’s dogs, Napoleon becomes supreme leader and life becomes more difficult and frightening. The animals are confused by his hypocritical actions but his right-hand pig, Squealer, convinces them to accept the decisions. The windmill that promised a better life did not deliver a better life for the animals, instead only enriching the gluttonous life of the pigs. Napoleon rules through a combination of fear and propaganda. He represents the opportunistic, cunning dictators in history. The sheep and Boxer represent the gullible working class, easily persuaded by propaganda. They need to follow a leader. Through them, Orwell expresses the dangers of an uneducated population.

Chemistry 105 Practice Test: Answer Key

Chem 105 PracticeTest 1Note: There will not be this many questions on your test, I just wanted to give you as much practice as possible. Also, none of these exact questions will be on the test, just similar questions. Also, make sure you can do the homework, as I may have some questions similar to the homework questions. 1. Molecules can be described as a. a mixture of two or more pure substances. b. a mixture of two or more elements that has a specific ratio between components. c. two or more atoms chemically joined together. d. a heterogeneous mixture e. a homogeneous mixture Answer: C 2. Dalton's Atomic Theory states . that all elements have several isotopes. b. that matter is composed of small indestructible particles. c. that the properties of matter are determined by the properties of atoms. d. that energy is neither created nor destroyed during a chemical reaction. e. that an atom is predominantly empty space. Answer: B 3. Which of the following represents a hypothesis? a. Sodium reacts with water to form sodium hydroxide and hydrogen gas. b. Nitrogen gas is a fairly inert substance. c. Nickel has a silvery sheen. d. When a substance combusts, it combines with air. e. When wood burns, heat is given off. Answer: D 4. Which is true of a Scientific Theory (circle all that apply) a. It is an interpretation for an observation b. It is a general explanation for the manifestation and behavior of all nature c. It can be validated or invalidated by experiment and observation d. It describes why things happen Answer: B, C, and D 5. Mass (circle all that apply) a. Is dependent on location (gravity) b. Is the amount of matter in a substance and remains the same regardless of location c. can be measured by using a scale or balance d. is measured in ml Answer: B and C 6. The states of matter are a. Solid and gas b. Liquid and gas . Gas, solid, and liquid d. Gas, air, and vapor Answer: C 7. A liquid (circle all that apply) a. Has a definite volume b. Has particles that are less orderly and can move about freely c. Has particles that are tightly packed d. Has no definite volume or shape e. Answer: A and B 8. Identify dry ice as a solid, liquid, or gas. a. solid b. liquid c. gas d. both solid and liquid Answer: A 9. When a gas is cooled (circle all that apply) a. Its molecules have fewer energetic collisions b. The motion of the gas particles decrease c. The motion of gas particles increase d. Nothing happens to the gas particles Answer: A and B 10. Classify each of the following as a mixture or a pure substance: a. Carbon dioxide _____________________ b. Blood ______________________ c. Helium (He) ______________________ d. Sugar water _______________________ Answer: A-pure substance; B-mixture; C-pure substance; D-mixture 11. Choose the pure substance from the list below. a. sea water b. sugar c. air d. lemonade e. milk Answer: B 12. Choose the heterogeneous mixture from the list below. a. Gatorade b. chlorine gas c. black coffee d. chicken noodle soup e. carbon (graphite) Answer: D 13. Which of the following statements about crystalline and amorphous solids is TRUE? a. A crystalline solid is composed of atoms or molecules arranged with long-range repeating order. b. An example of a crystalline solid is glass. c. An example of an amorphous solid is table salt (NaCl). d. An amorphous solid is composed of atoms or molecules with a majority of its volume empty. e. All of the above statements are TRUE. Answer: A 14. A substance that can't be chemically broken down into simpler substances is considered to be a. a homogeneous mixture. b. an element. c. a heterogeneous mixture. d. compound. e. an electron. Answer: B 15. Two or more substances in variable proportions, where the composition is constant throughout are considered a. a compound. b. an element. c. a heterogeneous mixture. d. a homogeneous mixture. e. a crystalline solid. Answer: D 16. Which of the following are examples of physical change? a. sugar is dissolved in water. b. coffee is brewed. c. dry ice sublimes. d. ice (solid water) melts. e. All of these are examples of physical change. Answer: E 17. Which of the following are examples of a chemical change? a. coffee brewing b. water boiling c. nails rusting d. alt dissolves in water e. None of the above are chemical changes. Answer: C 18. Which of the following represents a physical property? a. Sodium metal is extremely reactive with chlorine gas. b. Mercury is a silver liquid at room temperature. c. the tendency of aluminum to â€Å"rust† d. the flammability of butane fuel e. the unreactive nature of argon gas Answer: B 19. Define thermal energy. a. Energy associated with the temperature of an object. b. Energy associated with the motion of an object. c. Energy associated with the force of an object. d. Energy associated with the gravity of an object. e. Energy associated with the position of an object. Answer: A 20. Which of the following are examples of intensive properties? a. density b. volume c. mass d. None of the above are examples of intensive properties. e. All of the above are examples of intensive properties. Answer: A 21. If the temperature is 178 °F, what is the temperature in degrees celsius? a. 352 °C b. 451 °C c. 67 °C d. 81. 1 °C e. 378 °C Answer: D 22. If the temperature is 25 °C, what is the temperature in  °F? a. 45 °F b. 298. 15 °F c. 77 °F d. -3. 89 °F Answer: C 23. If the temperature is 25 °C, what is the temperature in K? a. 45 K b. 298 K c. 77 K . -3. 89 K Answer: B 24. Determine the density of an object that has a mass of 149. 8 g and displaces 12 . 1 mL of water when placed in a graduated cylinder. a. 8. 08 g/mL b. 1. 38 g/mL c. 12 . 4 g/mL d. 18. 1 g/mL e. 11. 4 g/mL Answer: C 25. A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 4. 11 g/mL, 4. 81 g/mL, 4. 95 g/mL, 3. 75 g/mL. If the actual value for the density of the sugar solution is 4. 75 g/mL, which statement below best describes her results? a. Her results are precise, but not accurate. b. Her results are accurate, but not precise. . Her results are both precise and accurate d. Her results are neither precise nor accurate. e. It isn't possible to determine with the information given. Answer: D 26. Read the water level with the correct number of significant figures. a. 5 mL b. 5. 3 mL c. 5. 32 mL d. 5. 320 mL e. 5. 3200 mL Answer: B (Note: Remember, your last significant figure is the one that is uncertain. Because there are only whole number marks, the most certain significant figure is the 5, then we estimate where the meniscus of the liquid is between the 5 and the 6. This is why the correct reading is 5. 3, where the 3 is uncertain. If there were marks between the whole numbers, the correct answer would have 3 significant figures, since you could more accurately determine the volume. ) 27. Read the length of the metal bar with the correct number of significant figures. a. 20 cm b. 15 cm c. 15. 0 cm d. 15. 00 cm e. 15. 000 cm Answer: D 28. How many significant figures are in: 1009. 630 mL? a. 1009. 630 ml _____7______ b. 3. 408 x 104 m _____4_______ c. 0. 0005890 g ______4_______ 29. Complete the following calculations and report your answer with the correct number of significant figures: a. (249. 362 + 41)/63. 498 = ____4. 57________ b. 433. 621 + 0. 02 = ____433. 4_________ c. (965. 43 x 3. 911) + 9413. 4136 = ____1. 319 x 104 or 13190_____ 30. What wavelength of light would you report in units of nm, if the light had a wavelength of 7. 60 x 10-10 m? a. 7. 60 ? 10-3 nm b. 7. 60 ? 10-19 nm c. 1. 32 nm d. 0. 760 nm e. 760 nm Answer: D 31. How many cm3 are contained in 3. 77 ? 104 mm3? a. 3. 77 ? 104 cm3 b. 3. 77 ? 101 cm3 c. 3. 77 ? 10-10 cm3 d. 3. 77 ? 1020 cm3 e. 3. 77 ? 106 cm3 f. Answer: B 32. If a room requires 25. 4 square yards of carpeting, what is the area of the floor in units of ft2? (3 ft = 1 yd) a. 76. 2 ft2 b. 8. 47 ft2 c. 282 ft2 d. 229 ft2 e. 68. 6 ft2 Answer: D 33. Convert 15. km to miles. (use conversions in the back of your book. These will be given for the test a. 24. 1 miles b. 9. 32 miles c. 591 miles d. 33. 1 miles e. Answer: B 34. Gas is sold for $1. 399 per liter in Toronto, Canada. Your car needs 12. 00 gallons. How much will your credit card be charged in dollars? ( use conversions in the back of your book. These will be given for the test) a. $16. 79 b. $67. 15 c. $4. 44 d. $63. 54 Answer: D 35. Crude oil is an example of a. a compound. b. an element. c. a heterogeneous mixture. d. a homogeneous mixture. Answer: C 3 6. NaCl is an example of a. a compound. b. an element. c. a heterogeneous mixture. . a homogeneous mixture. Answer: A 37. A piece of metal ore weighs 8. 25 g. When a student places it into a graduated cylinder containing water, the liquid level rises from 21. 25 mL to 26. 47 mL. What is the density of the ore? a. 0. 312 g/mL b. 0. 633 g/mL c. 1. 58 g/mL d. 3. 21 g/mL Answer: C 38. A mass of mercury occupies 0. 950 L. What volume would an equal mass of ethanol occupy? The density of mercury is and the density of ethanol is 0. 789 g/mL. a. 0. 0553 L b. 0. 0613 L c. 16. 3 L d. 18. 1 L Answer: C 39. Round the following number to four significant figures and express the result in standard exponential notation: 229. 13 a. 0. 2296 ? 103 b. 229. 6 c. 2. 296 ? 10-2 d. 2. 296 ? 102 e. 22. 96 ? 10-1 Answer: D 40. Round off 00907506 to four significant figures. a. 0091 b. 9076 c. 9100 d. 9. 075 ? 105 Answer: D 41. The diameter of an atom is approximately 1 ? 10-10 m. What is the diameter in millimeters? a. 1 ? 10-16 mm b. 1 ? 10-13 mm c. 1 ? 10-7 mm d. 1 ? 10-4 mm Answer: C 42. How many liters of wine can be held in a wine barrel whose capacity is 26. 0 gal? 1 gal = 4 qt = 3. 7854 L. a. 1. 46 ? 10-4 b. 0. 146 c. 98. 4 d. 6. 87 ? 103 e. 6. 87 Answer: C 43. 128) How many liters of air are in a room that measures 10. 0 x 11. 0 ft and has an 8. 0 ft ceiling? 1 in. = 2. 54 cm (exactly); 1 L = 103 cm3. a. 2. 49 ? 104 b. 92. 8 c. 26. 8 d. 2. 68 ? 107 e. 8. 84 ? 105 Answer: A 44. 1) Which of the following is an example of the law of multiple proportions? a. A sample of chlorine is found to contain three times as much Cl-35 as Cl-37. b. Two different compounds formed from carbon and oxygen have the following mass ratios: 1. 33 g O: 1 g C and 2. 66 g O: 1 g C. c. Two different samples of table salt are found to have the same ratio of sodium to chlorine. d. The atomic mass of bromine is found to be 79. 90 amu. e. Nitrogen dioxide always has a mass ratio of 2. 8 g O: 1 g N. Answer: B 45. Identify the element that has an atomic number of 40. a. neon b. calcium c. zirconium d. bromine Answer: C 46. The atomic mass for cadmium is a. 48 b. 112. 41 c. 40. 08 d. 20 Answer: B 47. The mass number is equal to a. the sum of the sum of the electrons and protons. b. the sum of the sum of the neutrons and electrons. c. the sum of the number of protons, neutrons, and electrons. d. the sum of the number of protons and neutrons. Answer: D 48. What element is defined by the following information? p+ = 11n ° = 12 e- = 11 a. sodium b. vanadium c. magnesium d. titanium Answer: A 49. ) What does â€Å"X† represent in the following symbol? X a. silicon b. sulfur c. zinc d. ruthenium e. nickel Answer: A 50. 11) Determine the number of protons, neutrons and electrons in the following: X a. p+ = 18n ° = 18e- = 22 b. p+ = 18n ° = 22e- = 18 c. p+ = 22n ° = 18e- = 18 d. p+ = 18n ° = 22e- = 40 e. p+ = 40 n ° = 22e- = 18 Answer: B 51. Identify a cation. a. An atom that has lost an electron. b. An atom that has gained an electron. c. An atom that has lost a proton. d. An atom that has gained a proton. Answer: A 52. What element is defined by the following information? p+ = 17n ° = 20 e- = 17 a. calcium b. rubidium c. hlorine d. neon e. oxygen Answer: C 53. What species is represented by the following information? p+ = 17 n ° = 18 e- = 18 a. Cl b. Cl- c. Ar d. Ar+ e. Kr f. Answer: B 54. Give the number of electrons for carbon-14, with a -2 charge . a. 7 b. 4 c. 6 d. 8 Answer: D 55. Predict the charge that an aluminum ion would have. a. 5- b. 1+ c. 1- d. 2+ e. 3+ Answer: E 56. Predict the charge that the ion formed from bromine would have. a. 1- b. 2+ c. 1+ d. 4+ e. 2- f. Answer: A 57. Which of the following elements is NOT a metal? a. Ba b. Mg c. Xe d. Pb e. Ga Answer: C 58. Which of the following elements is a noble gas? a. Ar b. Br c. N d. O e. K Answer: A 59. Which of the following elements is an alkali metal? a. Zn b. Xe c. F d. Li e. Ca Answer: D 60. Which of the following statements is FALSE? a. Anions are usually larger than their corresponding atom. b. Metals tend to form cations c. Atoms are usually larger than their corresponding cation. d. The halogens tend to form 1+ ions. e. Nonmetals tend to gain electrons. Answer: D 61. Which of the following does NOT describe a nonmetal? a. Tend to gain electrons b. Found in the upper right hand corner of the periodic table. c. Poor conductor of electricity d. Nonmetals are generally unreactive. e. Poor conductor of heat. Answer: D 62. Silver has an atomic mass of 107. 868 amu. The Ag-109 isotope (108. 905 amu) is 48. 16%. What is the amu of the other isotope? a. 106. 905 amu b. 106. 908 amu c. 106. 903 amu d. D) 106. 911 amu Answer: A 63. Which of the following contains the MOST atoms? You shouldn't need to do a calculation here. a. 10. 0 g Ne b. 10. 0 g He c. 10. 0 g Ar d. 10. 0 g Kr e. 10. 0 g Mg Answer: B 64. How many silver atoms are contained in 3. 75 moles of silver? a. 6. 23 ? 1024 silver atoms b. 2. 26 ? 1024 silver atoms c. 1. 61 ? 1023 silver atoms d. 2. 44 ? 1026 silver atoms e. 6. 50 ? 1025 silver atoms Answer: B 65. How many moles of potassium are contained in 449 g of potassium? a. 11. 5 moles b. 17. 6 moles c. 69. 2 moles d. 23. 9 moles e. 41. 5 moles Answer: A 66. What mass, in kg, does 5. 84 moles of titanium (Ti) have? a. 0. 352 kg b. 0. 122 kg c. 0. 820 kg d. 0. 280 kg e. 0. 632 kg Answer: D 67. How many moles of Cs are contained in 595 kg of Cs? a. 2. 23 ? 102 moles Cs b. 4. 48 ? 103 moles Cs c. 7. 91 ? 104 moles Cs d. 1. 26 ? 103 moles Cs e. 5. 39 ? 102 moles Cs Answer: B 68. How many iron atoms are contained in 354 g of iron? a. 2. 62 ? 1025 Fe atoms b. 2. 13 ? 1026 Fe atoms c. 4. 69 ? 1024 Fe atoms d. 3. 82 ? 1024 Fe atoms . 9. 50 ? 1022 Fe atoms Answer: D 69. Calculate the mass, in kg, of 4. 87 x 1025 atoms of Zn. a. 5. 29 kg b. 1. 89 kg c. 8. 09 kg d. 1. 24 kg e. 1. 09 kg Answer: A Match the following. A) Fe B) C C) Mg D) Si E) K 70. magnesium 71. carbon 72. potassium 73. iron 74. silicon Answers: 70) C 71) B 72) E 73) A 74) D 75. Give the name of the element whose symbol is Na. Answer: sodium 76. An atom of 131Xe contains ________ electrons. a. 131 b. 185 c. 77 d. 123 e. 54 Answer: E 77. An ion has 8 protons, 9 neutrons, and 10 electrons. The symbol for the ion is ________. a. 17O2- b. 17O2+ c. 19F+ d. 19F- e. 17Ne2+ Answer: A 78. How many protons does the Br- ion possess? a. 34 b. 36 c. 6 d. 8 e. 35 Answer: E 79. Predict the charge of the most stable ion of potassium. a. 3+ b. 1- c. 2+ d. 2- e. 1+ Answer: E 80. What is the chemical symbol for mercury? a. Ag b. Au c. Hg d. Pb Answer: C 81. Which are isotopes? An atom that has an atomic number of 20 and a mass number of 42 is an isotope of an atom that has a. an atomic number of 21 and a mass number of 42. b. an atomic number of 20 and a mass number of 40. c. 22 neutrons and 20 protons. d. 22 protons and 20 neutrons. Answer: B 82. How many protons (p) and neutrons (n) are in an atom of Sr? a. 38 p, 52 n . 38 p, 90 n c. 52 p, 38 n d. 90 p, 38 n Answer: A 83. The mass number of an atom of 128Xe is ________. a. 54 b. 182 c. 74 d. 128 e. 120 Answer: D 84. What is the identity of element Q if the ion Q2+ contains 10 electrons? a. C b. O c. Ne d. Mg Answer: D 85. In which of the following sets do all species have the same number of electrons? a. F-, Ne, Mg2+ b. Ge, Se2-, Br- c. K+, Rb+, Cs+ d. Br, Br-, Br+ Answer: A 86. Argon belongs to the ________ group of the periodic table. a. alkali metal b. alkaline earth metal c. halogen d. noble gas Answer: D 87. Which of the following elements has chemical properties similar to tellurium? . fluorine b. hydrogen c. nitrogen d. sulfur Answer: D 88. An ionic bond is best described as: a. the sharing of electrons. b. the transfer of electrons from one atom to another. c. the attraction that holds the atoms together in a polyatomic ion. d. the attraction between 2 nonmetal atoms. e. the attraction between 2 metal atoms. Answer: B 89. What is the empirical formula for C4H10O2? a. C2H5O b. CHO c. C2H4O d. CHO2 e. CH2O Answer: A 90. Write a possible molecular formula for C4H4O. a. C8H8O2 b. C12H12O2 c. C2H2O d. C8H8O Answer: A 91. Which of the following is an atomic element? a. Br b. H c. N d. O e. Mg Answer: E 92. Which of the following is a molecular element? a. Kr b. Ag c. S d. Mg e. Ti Answer: C 93. Which of the following is a molecular compound? a. CuCl2 b. KCl c. NaNO3 d. CH3Cl e. RbBr f. Answer: D 94. Which of the following is an ionic compound? a. SCl2 b. Mg3(PO4)2 c. Cl2O d. CH2O e. PF5 Answer: B 95. Write the formula for the compound formed between potassium and sulfur. a. KS b. KS2 c. K2S d. K2SO3 e. K3S2 Answer: C 96. Give the name for SnO. a. tin (I) oxide b. tin (II) oxide c. tin (III) oxide d. tin (IV) oxide Answer: B 97. Write the formula for strontium nitride. a. Sr3N2 b. Sr(NO3)2 c. SrN d. Sr2N3 e. Sr(NO2)2 Answer: A 98. Write the name for Sn(SO4)2. Remember that Sn forms several ions. a. tin (I) sulfite b. tin (IV) sulfate c. tin sulfide d. tin (II) sulfite e. tin (I) sulfate Answer: B 99. Determine the name for CoCl2†¢6H2O. Remember that Co forms several ions. a. cobalt chloride hydrate b. cobalt (I) chloride heptahydrate c. cobalt (II) chloride heptahydrate d. cobalt (II) chloride hexahydrate e. cobalt (I) chloride Answer: D 100. Write the formula for copper (II) sulfate pentahydrate. a. Cu2SO3†¢H5 b. Cu2S†¢H2O c. CuS†¢5H2O d. (CuSO4)5 e. CuSO4†¢5H2O Answer: E 101. Determine the name for H2CO3. a. carbonous acid b. dihydrogen carbonate c. carbonic acid . hydrocarbonic acid e. hydrocarbide acid Answer: C 102. Identify the formula for nitric acid. a. HNO3 b. HNO2 c. HNO d. HNO4 Answer: A 103. Determine the name for P4O10. a. phosphorus (IV) oxide b. diphosphorus pentoxide c. phosphorus oxide d. phosphorus (II) oxide e. tetraphosphorus decoxide Answer: E 104. Calculate the molar mass for Mg(ClO4)2. a. 223. 21 g/mol b. 123. 76 g/mol c. 119. 52 g/mol d. 247. 52 g/mol e. 75. 76 g/mol Answer: A 105. Calculate the molar mass of Al(C2H3O2)3. a. 86. 03 g/mol b. 204. 13 g/mol c. 56. 00 g/mol d. 258. 09 g/mol e. 139. 99 g/mol Answer: B 106. How many millimoles of Ca(NO3)2 contain 4. 8 ? 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164. 10 g/mol. a. 12. 6 mmol Ca(NO3)2 b. 13. 0 mmol Ca(NO3)2 c. 20. 7 mmol Ca(NO3)2 d. 79. 4 mmol Ca(NO3)2 e. 57. 0 mmol Ca(NO3)2 Answer: D 107. How many C2H4 molecules are contained in 45. 8 mg of C2H4? The molar mass of C2H4 is 28. 05 g/mol. a. 9. 83 ? 1020 C2H4 molecules b. 7. 74 ? 1026 C2H4 molecules c. 2. 71 ? 1020 C2H4 molecules d. 3. 69 ? 1023 C2H4 molecules e. 4. 69 ? 1023 C2H4 molecules Answer: A 108. What is the mass of 9. 44 ? 1024 molecules of NO2? The molar mass of NO2 is 46. 01 g/mol. a. 205 g b. 294 g c. 721 g d. 341 g e. 685 g Answer: C 109. Calculate the mass percent composition of sulfur in Al2(SO4)3. a. 28. 12 % b. 9. 372 % c. 42. 73 % d. 21. 38 % e. 35. 97 % Answer: A 110. How many moles of N2O3 contain 2. 55 ? 1024 oxygen atoms? (change the molecule) a. 1. 41 moles N2O3 b. 4. 23 moles N2O3 c. 12. 7 moles N2O3 d. 7. 87 moles N2O3 e. 2. 82 moles N2O3 Answer: A 111. How many moles of PCl3 contain 3. 68 ? 1025 chlorine atoms? a. 61. 1 moles PCl3 b. 20. 4 moles PCl3 c. 16. 4 moles PCl3 d. 54. 5 moles PCl3 e. 49. 1 moles PCl3 Answer: B 112. How many sodium ions are contained in 99. 6 mg of Na2SO3? The molar mass of Na2SO3 is 126. 05 g/mol. a. 1. 52 ? 1027 sodium ions . 4. 76 ? 1020 sodium ions c. 2. 10 ? 1021 sodium ions d. 1. 05 ? 1021 sodium ions e. 9. 52 ? 1020 sodium ions Answer: E 113. Determine the volume of hexane that contains 5. 33 ? 1022 molecules of hexane. The density of hexane is 0. 6548 g/mL and its molar mass is 86. 17 g/mol. a. 8. 59 mL b. 13. 5 mL c. 7. 40 mL d. 12. 4 mL e. 11. 6 mL Answer: E 114. Determine the molecular formula of a compound that has a molar mass of 92. 0 g/mol and an empirical formula of NO2. a. N2O3 b. N3O6 c. N2O4 d. NO2 e. N2O5 Answer: C 115. Determine the empirical formula for a compound that is 36. 86% N and 63. 14% O by mass. a. NO b. N2O c. NO2 d. N2O3 e. NO3 Answer: D 116. Write a balanced equation to show the reaction of gaseous ethane with gaseous oxygen to form carbon monoxide gas and water vapor. a. 2 C2H6(g) + 7 O2(g) > 4 CO2(g) + 6 H2O(g) b. C2H6(g) + 5 O(g) > 2 CO(g) + 3 H2O(g) c. 2 C2H6(g) + 5 O2(g) > 4 CO(g) + 6 H2O(g) d. C2H6(g) + 7 O(g) > 2 CO2(g) + 3 H2O(g) e. 2 CH3(g) + 5 O(g) > 2 CO(g) + 3 H2O(g) Answer: C 117. Which of the following is one possible form of pentane? a. CH3CH2CH2CH2CH3 b. CH3CH=CHCH2CH3 c. CH3CH2CH2CH2CH2CH3 d. CH3CH2CH2CH2CH2NH2 e. CH3CH2-O-CH2CH2CH3 Answer: A 118. List the elements in a hydrocarbon Answer: hydrogen and carbon 119. What type of bonding is found in the compound OF2? a. covalent bonding b. hydrogen bonding c. ionic bonding d. metallic bonding Answer: A 120. In which set do all elements tend to form cations in binary ionic compounds? a. K, Ga, O b. Sr, Ni, Hg c. N, P, Bi d. O, Br, I Answer: B 121. Rb2S is named a. rubidium disulfide. b. rubidium sulfide. c. rubidium(II) sulfide. d. rubidium sulfur. Answer: B 122. An aqueous solution of H2S is named a. hydrosulfuric acid. b. hydrosulfurous acid. c. sulfuric acid. d. sulfurous acid. Answer: A 123. What is the molar mass of nitrogen gas? a. 14. 0 g/mol b. 28. 0 g/mol c. 6. 02 ? 1023 g/mol d. 1. 20 ? 023 g/mol Answer: B 124. What mass of carbon dioxide, C O2, contains the same number of molecules as 3. 00 g of trichlorofluoromethane, CCl3F? a. 0. 106 g b. 0. 961 g c. 1. 04 g d. 9. 37 g e. Answer: B 125. Which of the following has the greatest mass? a. 3. 88 ? 1022 molecules of O2 b. 1. 00 g of O2 c. 0. 0312 mol of O2 d. All of the above have the same mass. Answer: A 126. A sample of pure calcium fluoride with a mass of 15. 0 g contains 7. 70 g of calcium. How much calcium is contained in 40. 0 g of calcium fluoride? a. 2. 27 g b. 7. 70 g c. 15. 0 g d. 20. 5 g Answer: D 127. What is the empirical formula of a compound that is 62. % C, 10. 4% H, and 27. 5% O by mass? a. C3HO b. C6HO3 c. C6H12O2 d. C5H10O2 e. C3H6O Answer: E 128. How many oxygen atoms are there in 7. 00 g of sodium dichromate, Na2Cr2O7? a. 0. 187 oxygen atoms b. 2. 30 ? 1021 oxygen atoms c. 1. 60 ? 1022 oxygen atoms d. 1. 13 ? 1023 oxygen atoms Answer: D 129. Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 0. 80 g of methane reacts with 3. 2 g of oxygen to produce 2. 2 g of carbon dioxide? a. 1. 8 g b. 2. 2 g c. 3. 7 g d. 4. 0 g Answer: A 130. Combustion analysis of 1. 200 g of an unknown compound containing carbon, hydrogen, and oxygen produced 2. 86 g of CO2 and 1. 134 g of H2O. What is the empirical formula of the compound? a. C2H5O b. C2H5O2 c. C2H10O3 d. C3H8O2 Answer: D 131. What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest, whole-number coefficients? _____ C2H6O (l) + _____ O2(g) > _____ CO2(g) + _____ H2O(l) a. 9 b. 7 c. 5 d. 3 Answer: D 132. Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid. What is the coefficient for sulfuric acid when the equation is balanced using the lowest, whole-numbered coefficients? a. 1 b. 2 c. 3 d. none of these Answer: C Chemistry 105 Practice Test: Answer Key Chem 105 PracticeTest 1Note: There will not be this many questions on your test, I just wanted to give you as much practice as possible. Also, none of these exact questions will be on the test, just similar questions. Also, make sure you can do the homework, as I may have some questions similar to the homework questions. 1. Molecules can be described as a. a mixture of two or more pure substances. b. a mixture of two or more elements that has a specific ratio between components. c. two or more atoms chemically joined together. d. a heterogeneous mixture e. a homogeneous mixture Answer: C 2. Dalton's Atomic Theory states . that all elements have several isotopes. b. that matter is composed of small indestructible particles. c. that the properties of matter are determined by the properties of atoms. d. that energy is neither created nor destroyed during a chemical reaction. e. that an atom is predominantly empty space. Answer: B 3. Which of the following represents a hypothesis? a. Sodium reacts with water to form sodium hydroxide and hydrogen gas. b. Nitrogen gas is a fairly inert substance. c. Nickel has a silvery sheen. d. When a substance combusts, it combines with air. e. When wood burns, heat is given off. Answer: D 4. Which is true of a Scientific Theory (circle all that apply) a. It is an interpretation for an observation b. It is a general explanation for the manifestation and behavior of all nature c. It can be validated or invalidated by experiment and observation d. It describes why things happen Answer: B, C, and D 5. Mass (circle all that apply) a. Is dependent on location (gravity) b. Is the amount of matter in a substance and remains the same regardless of location c. can be measured by using a scale or balance d. is measured in ml Answer: B and C 6. The states of matter are a. Solid and gas b. Liquid and gas . Gas, solid, and liquid d. Gas, air, and vapor Answer: C 7. A liquid (circle all that apply) a. Has a definite volume b. Has particles that are less orderly and can move about freely c. Has particles that are tightly packed d. Has no definite volume or shape e. Answer: A and B 8. Identify dry ice as a solid, liquid, or gas. a. solid b. liquid c. gas d. both solid and liquid Answer: A 9. When a gas is cooled (circle all that apply) a. Its molecules have fewer energetic collisions b. The motion of the gas particles decrease c. The motion of gas particles increase d. Nothing happens to the gas particles Answer: A and B 10. Classify each of the following as a mixture or a pure substance: a. Carbon dioxide _____________________ b. Blood ______________________ c. Helium (He) ______________________ d. Sugar water _______________________ Answer: A-pure substance; B-mixture; C-pure substance; D-mixture 11. Choose the pure substance from the list below. a. sea water b. sugar c. air d. lemonade e. milk Answer: B 12. Choose the heterogeneous mixture from the list below. a. Gatorade b. chlorine gas c. black coffee d. chicken noodle soup e. carbon (graphite) Answer: D 13. Which of the following statements about crystalline and amorphous solids is TRUE? a. A crystalline solid is composed of atoms or molecules arranged with long-range repeating order. b. An example of a crystalline solid is glass. c. An example of an amorphous solid is table salt (NaCl). d. An amorphous solid is composed of atoms or molecules with a majority of its volume empty. e. All of the above statements are TRUE. Answer: A 14. A substance that can't be chemically broken down into simpler substances is considered to be a. a homogeneous mixture. b. an element. c. a heterogeneous mixture. d. compound. e. an electron. Answer: B 15. Two or more substances in variable proportions, where the composition is constant throughout are considered a. a compound. b. an element. c. a heterogeneous mixture. d. a homogeneous mixture. e. a crystalline solid. Answer: D 16. Which of the following are examples of physical change? a. sugar is dissolved in water. b. coffee is brewed. c. dry ice sublimes. d. ice (solid water) melts. e. All of these are examples of physical change. Answer: E 17. Which of the following are examples of a chemical change? a. coffee brewing b. water boiling c. nails rusting d. alt dissolves in water e. None of the above are chemical changes. Answer: C 18. Which of the following represents a physical property? a. Sodium metal is extremely reactive with chlorine gas. b. Mercury is a silver liquid at room temperature. c. the tendency of aluminum to â€Å"rust† d. the flammability of butane fuel e. the unreactive nature of argon gas Answer: B 19. Define thermal energy. a. Energy associated with the temperature of an object. b. Energy associated with the motion of an object. c. Energy associated with the force of an object. d. Energy associated with the gravity of an object. e. Energy associated with the position of an object. Answer: A 20. Which of the following are examples of intensive properties? a. density b. volume c. mass d. None of the above are examples of intensive properties. e. All of the above are examples of intensive properties. Answer: A 21. If the temperature is 178 °F, what is the temperature in degrees celsius? a. 352 °C b. 451 °C c. 67 °C d. 81. 1 °C e. 378 °C Answer: D 22. If the temperature is 25 °C, what is the temperature in  °F? a. 45 °F b. 298. 15 °F c. 77 °F d. -3. 89 °F Answer: C 23. If the temperature is 25 °C, what is the temperature in K? a. 45 K b. 298 K c. 77 K . -3. 89 K Answer: B 24. Determine the density of an object that has a mass of 149. 8 g and displaces 12 . 1 mL of water when placed in a graduated cylinder. a. 8. 08 g/mL b. 1. 38 g/mL c. 12 . 4 g/mL d. 18. 1 g/mL e. 11. 4 g/mL Answer: C 25. A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 4. 11 g/mL, 4. 81 g/mL, 4. 95 g/mL, 3. 75 g/mL. If the actual value for the density of the sugar solution is 4. 75 g/mL, which statement below best describes her results? a. Her results are precise, but not accurate. b. Her results are accurate, but not precise. . Her results are both precise and accurate d. Her results are neither precise nor accurate. e. It isn't possible to determine with the information given. Answer: D 26. Read the water level with the correct number of significant figures. a. 5 mL b. 5. 3 mL c. 5. 32 mL d. 5. 320 mL e. 5. 3200 mL Answer: B (Note: Remember, your last significant figure is the one that is uncertain. Because there are only whole number marks, the most certain significant figure is the 5, then we estimate where the meniscus of the liquid is between the 5 and the 6. This is why the correct reading is 5. 3, where the 3 is uncertain. If there were marks between the whole numbers, the correct answer would have 3 significant figures, since you could more accurately determine the volume. ) 27. Read the length of the metal bar with the correct number of significant figures. a. 20 cm b. 15 cm c. 15. 0 cm d. 15. 00 cm e. 15. 000 cm Answer: D 28. How many significant figures are in: 1009. 630 mL? a. 1009. 630 ml _____7______ b. 3. 408 x 104 m _____4_______ c. 0. 0005890 g ______4_______ 29. Complete the following calculations and report your answer with the correct number of significant figures: a. (249. 362 + 41)/63. 498 = ____4. 57________ b. 433. 621 + 0. 02 = ____433. 4_________ c. (965. 43 x 3. 911) + 9413. 4136 = ____1. 319 x 104 or 13190_____ 30. What wavelength of light would you report in units of nm, if the light had a wavelength of 7. 60 x 10-10 m? a. 7. 60 ? 10-3 nm b. 7. 60 ? 10-19 nm c. 1. 32 nm d. 0. 760 nm e. 760 nm Answer: D 31. How many cm3 are contained in 3. 77 ? 104 mm3? a. 3. 77 ? 104 cm3 b. 3. 77 ? 101 cm3 c. 3. 77 ? 10-10 cm3 d. 3. 77 ? 1020 cm3 e. 3. 77 ? 106 cm3 f. Answer: B 32. If a room requires 25. 4 square yards of carpeting, what is the area of the floor in units of ft2? (3 ft = 1 yd) a. 76. 2 ft2 b. 8. 47 ft2 c. 282 ft2 d. 229 ft2 e. 68. 6 ft2 Answer: D 33. Convert 15. km to miles. (use conversions in the back of your book. These will be given for the test a. 24. 1 miles b. 9. 32 miles c. 591 miles d. 33. 1 miles e. Answer: B 34. Gas is sold for $1. 399 per liter in Toronto, Canada. Your car needs 12. 00 gallons. How much will your credit card be charged in dollars? ( use conversions in the back of your book. These will be given for the test) a. $16. 79 b. $67. 15 c. $4. 44 d. $63. 54 Answer: D 35. Crude oil is an example of a. a compound. b. an element. c. a heterogeneous mixture. d. a homogeneous mixture. Answer: C 3 6. NaCl is an example of a. a compound. b. an element. c. a heterogeneous mixture. . a homogeneous mixture. Answer: A 37. A piece of metal ore weighs 8. 25 g. When a student places it into a graduated cylinder containing water, the liquid level rises from 21. 25 mL to 26. 47 mL. What is the density of the ore? a. 0. 312 g/mL b. 0. 633 g/mL c. 1. 58 g/mL d. 3. 21 g/mL Answer: C 38. A mass of mercury occupies 0. 950 L. What volume would an equal mass of ethanol occupy? The density of mercury is and the density of ethanol is 0. 789 g/mL. a. 0. 0553 L b. 0. 0613 L c. 16. 3 L d. 18. 1 L Answer: C 39. Round the following number to four significant figures and express the result in standard exponential notation: 229. 13 a. 0. 2296 ? 103 b. 229. 6 c. 2. 296 ? 10-2 d. 2. 296 ? 102 e. 22. 96 ? 10-1 Answer: D 40. Round off 00907506 to four significant figures. a. 0091 b. 9076 c. 9100 d. 9. 075 ? 105 Answer: D 41. The diameter of an atom is approximately 1 ? 10-10 m. What is the diameter in millimeters? a. 1 ? 10-16 mm b. 1 ? 10-13 mm c. 1 ? 10-7 mm d. 1 ? 10-4 mm Answer: C 42. How many liters of wine can be held in a wine barrel whose capacity is 26. 0 gal? 1 gal = 4 qt = 3. 7854 L. a. 1. 46 ? 10-4 b. 0. 146 c. 98. 4 d. 6. 87 ? 103 e. 6. 87 Answer: C 43. 128) How many liters of air are in a room that measures 10. 0 x 11. 0 ft and has an 8. 0 ft ceiling? 1 in. = 2. 54 cm (exactly); 1 L = 103 cm3. a. 2. 49 ? 104 b. 92. 8 c. 26. 8 d. 2. 68 ? 107 e. 8. 84 ? 105 Answer: A 44. 1) Which of the following is an example of the law of multiple proportions? a. A sample of chlorine is found to contain three times as much Cl-35 as Cl-37. b. Two different compounds formed from carbon and oxygen have the following mass ratios: 1. 33 g O: 1 g C and 2. 66 g O: 1 g C. c. Two different samples of table salt are found to have the same ratio of sodium to chlorine. d. The atomic mass of bromine is found to be 79. 90 amu. e. Nitrogen dioxide always has a mass ratio of 2. 8 g O: 1 g N. Answer: B 45. Identify the element that has an atomic number of 40. a. neon b. calcium c. zirconium d. bromine Answer: C 46. The atomic mass for cadmium is a. 48 b. 112. 41 c. 40. 08 d. 20 Answer: B 47. The mass number is equal to a. the sum of the sum of the electrons and protons. b. the sum of the sum of the neutrons and electrons. c. the sum of the number of protons, neutrons, and electrons. d. the sum of the number of protons and neutrons. Answer: D 48. What element is defined by the following information? p+ = 11n ° = 12 e- = 11 a. sodium b. vanadium c. magnesium d. titanium Answer: A 49. ) What does â€Å"X† represent in the following symbol? X a. silicon b. sulfur c. zinc d. ruthenium e. nickel Answer: A 50. 11) Determine the number of protons, neutrons and electrons in the following: X a. p+ = 18n ° = 18e- = 22 b. p+ = 18n ° = 22e- = 18 c. p+ = 22n ° = 18e- = 18 d. p+ = 18n ° = 22e- = 40 e. p+ = 40 n ° = 22e- = 18 Answer: B 51. Identify a cation. a. An atom that has lost an electron. b. An atom that has gained an electron. c. An atom that has lost a proton. d. An atom that has gained a proton. Answer: A 52. What element is defined by the following information? p+ = 17n ° = 20 e- = 17 a. calcium b. rubidium c. hlorine d. neon e. oxygen Answer: C 53. What species is represented by the following information? p+ = 17 n ° = 18 e- = 18 a. Cl b. Cl- c. Ar d. Ar+ e. Kr f. Answer: B 54. Give the number of electrons for carbon-14, with a -2 charge . a. 7 b. 4 c. 6 d. 8 Answer: D 55. Predict the charge that an aluminum ion would have. a. 5- b. 1+ c. 1- d. 2+ e. 3+ Answer: E 56. Predict the charge that the ion formed from bromine would have. a. 1- b. 2+ c. 1+ d. 4+ e. 2- f. Answer: A 57. Which of the following elements is NOT a metal? a. Ba b. Mg c. Xe d. Pb e. Ga Answer: C 58. Which of the following elements is a noble gas? a. Ar b. Br c. N d. O e. K Answer: A 59. Which of the following elements is an alkali metal? a. Zn b. Xe c. F d. Li e. Ca Answer: D 60. Which of the following statements is FALSE? a. Anions are usually larger than their corresponding atom. b. Metals tend to form cations c. Atoms are usually larger than their corresponding cation. d. The halogens tend to form 1+ ions. e. Nonmetals tend to gain electrons. Answer: D 61. Which of the following does NOT describe a nonmetal? a. Tend to gain electrons b. Found in the upper right hand corner of the periodic table. c. Poor conductor of electricity d. Nonmetals are generally unreactive. e. Poor conductor of heat. Answer: D 62. Silver has an atomic mass of 107. 868 amu. The Ag-109 isotope (108. 905 amu) is 48. 16%. What is the amu of the other isotope? a. 106. 905 amu b. 106. 908 amu c. 106. 903 amu d. D) 106. 911 amu Answer: A 63. Which of the following contains the MOST atoms? You shouldn't need to do a calculation here. a. 10. 0 g Ne b. 10. 0 g He c. 10. 0 g Ar d. 10. 0 g Kr e. 10. 0 g Mg Answer: B 64. How many silver atoms are contained in 3. 75 moles of silver? a. 6. 23 ? 1024 silver atoms b. 2. 26 ? 1024 silver atoms c. 1. 61 ? 1023 silver atoms d. 2. 44 ? 1026 silver atoms e. 6. 50 ? 1025 silver atoms Answer: B 65. How many moles of potassium are contained in 449 g of potassium? a. 11. 5 moles b. 17. 6 moles c. 69. 2 moles d. 23. 9 moles e. 41. 5 moles Answer: A 66. What mass, in kg, does 5. 84 moles of titanium (Ti) have? a. 0. 352 kg b. 0. 122 kg c. 0. 820 kg d. 0. 280 kg e. 0. 632 kg Answer: D 67. How many moles of Cs are contained in 595 kg of Cs? a. 2. 23 ? 102 moles Cs b. 4. 48 ? 103 moles Cs c. 7. 91 ? 104 moles Cs d. 1. 26 ? 103 moles Cs e. 5. 39 ? 102 moles Cs Answer: B 68. How many iron atoms are contained in 354 g of iron? a. 2. 62 ? 1025 Fe atoms b. 2. 13 ? 1026 Fe atoms c. 4. 69 ? 1024 Fe atoms d. 3. 82 ? 1024 Fe atoms . 9. 50 ? 1022 Fe atoms Answer: D 69. Calculate the mass, in kg, of 4. 87 x 1025 atoms of Zn. a. 5. 29 kg b. 1. 89 kg c. 8. 09 kg d. 1. 24 kg e. 1. 09 kg Answer: A Match the following. A) Fe B) C C) Mg D) Si E) K 70. magnesium 71. carbon 72. potassium 73. iron 74. silicon Answers: 70) C 71) B 72) E 73) A 74) D 75. Give the name of the element whose symbol is Na. Answer: sodium 76. An atom of 131Xe contains ________ electrons. a. 131 b. 185 c. 77 d. 123 e. 54 Answer: E 77. An ion has 8 protons, 9 neutrons, and 10 electrons. The symbol for the ion is ________. a. 17O2- b. 17O2+ c. 19F+ d. 19F- e. 17Ne2+ Answer: A 78. How many protons does the Br- ion possess? a. 34 b. 36 c. 6 d. 8 e. 35 Answer: E 79. Predict the charge of the most stable ion of potassium. a. 3+ b. 1- c. 2+ d. 2- e. 1+ Answer: E 80. What is the chemical symbol for mercury? a. Ag b. Au c. Hg d. Pb Answer: C 81. Which are isotopes? An atom that has an atomic number of 20 and a mass number of 42 is an isotope of an atom that has a. an atomic number of 21 and a mass number of 42. b. an atomic number of 20 and a mass number of 40. c. 22 neutrons and 20 protons. d. 22 protons and 20 neutrons. Answer: B 82. How many protons (p) and neutrons (n) are in an atom of Sr? a. 38 p, 52 n . 38 p, 90 n c. 52 p, 38 n d. 90 p, 38 n Answer: A 83. The mass number of an atom of 128Xe is ________. a. 54 b. 182 c. 74 d. 128 e. 120 Answer: D 84. What is the identity of element Q if the ion Q2+ contains 10 electrons? a. C b. O c. Ne d. Mg Answer: D 85. In which of the following sets do all species have the same number of electrons? a. F-, Ne, Mg2+ b. Ge, Se2-, Br- c. K+, Rb+, Cs+ d. Br, Br-, Br+ Answer: A 86. Argon belongs to the ________ group of the periodic table. a. alkali metal b. alkaline earth metal c. halogen d. noble gas Answer: D 87. Which of the following elements has chemical properties similar to tellurium? . fluorine b. hydrogen c. nitrogen d. sulfur Answer: D 88. An ionic bond is best described as: a. the sharing of electrons. b. the transfer of electrons from one atom to another. c. the attraction that holds the atoms together in a polyatomic ion. d. the attraction between 2 nonmetal atoms. e. the attraction between 2 metal atoms. Answer: B 89. What is the empirical formula for C4H10O2? a. C2H5O b. CHO c. C2H4O d. CHO2 e. CH2O Answer: A 90. Write a possible molecular formula for C4H4O. a. C8H8O2 b. C12H12O2 c. C2H2O d. C8H8O Answer: A 91. Which of the following is an atomic element? a. Br b. H c. N d. O e. Mg Answer: E 92. Which of the following is a molecular element? a. Kr b. Ag c. S d. Mg e. Ti Answer: C 93. Which of the following is a molecular compound? a. CuCl2 b. KCl c. NaNO3 d. CH3Cl e. RbBr f. Answer: D 94. Which of the following is an ionic compound? a. SCl2 b. Mg3(PO4)2 c. Cl2O d. CH2O e. PF5 Answer: B 95. Write the formula for the compound formed between potassium and sulfur. a. KS b. KS2 c. K2S d. K2SO3 e. K3S2 Answer: C 96. Give the name for SnO. a. tin (I) oxide b. tin (II) oxide c. tin (III) oxide d. tin (IV) oxide Answer: B 97. Write the formula for strontium nitride. a. Sr3N2 b. Sr(NO3)2 c. SrN d. Sr2N3 e. Sr(NO2)2 Answer: A 98. Write the name for Sn(SO4)2. Remember that Sn forms several ions. a. tin (I) sulfite b. tin (IV) sulfate c. tin sulfide d. tin (II) sulfite e. tin (I) sulfate Answer: B 99. Determine the name for CoCl2†¢6H2O. Remember that Co forms several ions. a. cobalt chloride hydrate b. cobalt (I) chloride heptahydrate c. cobalt (II) chloride heptahydrate d. cobalt (II) chloride hexahydrate e. cobalt (I) chloride Answer: D 100. Write the formula for copper (II) sulfate pentahydrate. a. Cu2SO3†¢H5 b. Cu2S†¢H2O c. CuS†¢5H2O d. (CuSO4)5 e. CuSO4†¢5H2O Answer: E 101. Determine the name for H2CO3. a. carbonous acid b. dihydrogen carbonate c. carbonic acid . hydrocarbonic acid e. hydrocarbide acid Answer: C 102. Identify the formula for nitric acid. a. HNO3 b. HNO2 c. HNO d. HNO4 Answer: A 103. Determine the name for P4O10. a. phosphorus (IV) oxide b. diphosphorus pentoxide c. phosphorus oxide d. phosphorus (II) oxide e. tetraphosphorus decoxide Answer: E 104. Calculate the molar mass for Mg(ClO4)2. a. 223. 21 g/mol b. 123. 76 g/mol c. 119. 52 g/mol d. 247. 52 g/mol e. 75. 76 g/mol Answer: A 105. Calculate the molar mass of Al(C2H3O2)3. a. 86. 03 g/mol b. 204. 13 g/mol c. 56. 00 g/mol d. 258. 09 g/mol e. 139. 99 g/mol Answer: B 106. How many millimoles of Ca(NO3)2 contain 4. 8 ? 1022 formula units of Ca(NO3)2? The molar mass of Ca(NO3)2 is 164. 10 g/mol. a. 12. 6 mmol Ca(NO3)2 b. 13. 0 mmol Ca(NO3)2 c. 20. 7 mmol Ca(NO3)2 d. 79. 4 mmol Ca(NO3)2 e. 57. 0 mmol Ca(NO3)2 Answer: D 107. How many C2H4 molecules are contained in 45. 8 mg of C2H4? The molar mass of C2H4 is 28. 05 g/mol. a. 9. 83 ? 1020 C2H4 molecules b. 7. 74 ? 1026 C2H4 molecules c. 2. 71 ? 1020 C2H4 molecules d. 3. 69 ? 1023 C2H4 molecules e. 4. 69 ? 1023 C2H4 molecules Answer: A 108. What is the mass of 9. 44 ? 1024 molecules of NO2? The molar mass of NO2 is 46. 01 g/mol. a. 205 g b. 294 g c. 721 g d. 341 g e. 685 g Answer: C 109. Calculate the mass percent composition of sulfur in Al2(SO4)3. a. 28. 12 % b. 9. 372 % c. 42. 73 % d. 21. 38 % e. 35. 97 % Answer: A 110. How many moles of N2O3 contain 2. 55 ? 1024 oxygen atoms? (change the molecule) a. 1. 41 moles N2O3 b. 4. 23 moles N2O3 c. 12. 7 moles N2O3 d. 7. 87 moles N2O3 e. 2. 82 moles N2O3 Answer: A 111. How many moles of PCl3 contain 3. 68 ? 1025 chlorine atoms? a. 61. 1 moles PCl3 b. 20. 4 moles PCl3 c. 16. 4 moles PCl3 d. 54. 5 moles PCl3 e. 49. 1 moles PCl3 Answer: B 112. How many sodium ions are contained in 99. 6 mg of Na2SO3? The molar mass of Na2SO3 is 126. 05 g/mol. a. 1. 52 ? 1027 sodium ions . 4. 76 ? 1020 sodium ions c. 2. 10 ? 1021 sodium ions d. 1. 05 ? 1021 sodium ions e. 9. 52 ? 1020 sodium ions Answer: E 113. Determine the volume of hexane that contains 5. 33 ? 1022 molecules of hexane. The density of hexane is 0. 6548 g/mL and its molar mass is 86. 17 g/mol. a. 8. 59 mL b. 13. 5 mL c. 7. 40 mL d. 12. 4 mL e. 11. 6 mL Answer: E 114. Determine the molecular formula of a compound that has a molar mass of 92. 0 g/mol and an empirical formula of NO2. a. N2O3 b. N3O6 c. N2O4 d. NO2 e. N2O5 Answer: C 115. Determine the empirical formula for a compound that is 36. 86% N and 63. 14% O by mass. a. NO b. N2O c. NO2 d. N2O3 e. NO3 Answer: D 116. Write a balanced equation to show the reaction of gaseous ethane with gaseous oxygen to form carbon monoxide gas and water vapor. a. 2 C2H6(g) + 7 O2(g) > 4 CO2(g) + 6 H2O(g) b. C2H6(g) + 5 O(g) > 2 CO(g) + 3 H2O(g) c. 2 C2H6(g) + 5 O2(g) > 4 CO(g) + 6 H2O(g) d. C2H6(g) + 7 O(g) > 2 CO2(g) + 3 H2O(g) e. 2 CH3(g) + 5 O(g) > 2 CO(g) + 3 H2O(g) Answer: C 117. Which of the following is one possible form of pentane? a. CH3CH2CH2CH2CH3 b. CH3CH=CHCH2CH3 c. CH3CH2CH2CH2CH2CH3 d. CH3CH2CH2CH2CH2NH2 e. CH3CH2-O-CH2CH2CH3 Answer: A 118. List the elements in a hydrocarbon Answer: hydrogen and carbon 119. What type of bonding is found in the compound OF2? a. covalent bonding b. hydrogen bonding c. ionic bonding d. metallic bonding Answer: A 120. In which set do all elements tend to form cations in binary ionic compounds? a. K, Ga, O b. Sr, Ni, Hg c. N, P, Bi d. O, Br, I Answer: B 121. Rb2S is named a. rubidium disulfide. b. rubidium sulfide. c. rubidium(II) sulfide. d. rubidium sulfur. Answer: B 122. An aqueous solution of H2S is named a. hydrosulfuric acid. b. hydrosulfurous acid. c. sulfuric acid. d. sulfurous acid. Answer: A 123. What is the molar mass of nitrogen gas? a. 14. 0 g/mol b. 28. 0 g/mol c. 6. 02 ? 1023 g/mol d. 1. 20 ? 023 g/mol Answer: B 124. What mass of carbon dioxide, C O2, contains the same number of molecules as 3. 00 g of trichlorofluoromethane, CCl3F? a. 0. 106 g b. 0. 961 g c. 1. 04 g d. 9. 37 g e. Answer: B 125. Which of the following has the greatest mass? a. 3. 88 ? 1022 molecules of O2 b. 1. 00 g of O2 c. 0. 0312 mol of O2 d. All of the above have the same mass. Answer: A 126. A sample of pure calcium fluoride with a mass of 15. 0 g contains 7. 70 g of calcium. How much calcium is contained in 40. 0 g of calcium fluoride? a. 2. 27 g b. 7. 70 g c. 15. 0 g d. 20. 5 g Answer: D 127. What is the empirical formula of a compound that is 62. % C, 10. 4% H, and 27. 5% O by mass? a. C3HO b. C6HO3 c. C6H12O2 d. C5H10O2 e. C3H6O Answer: E 128. How many oxygen atoms are there in 7. 00 g of sodium dichromate, Na2Cr2O7? a. 0. 187 oxygen atoms b. 2. 30 ? 1021 oxygen atoms c. 1. 60 ? 1022 oxygen atoms d. 1. 13 ? 1023 oxygen atoms Answer: D 129. Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 0. 80 g of methane reacts with 3. 2 g of oxygen to produce 2. 2 g of carbon dioxide? a. 1. 8 g b. 2. 2 g c. 3. 7 g d. 4. 0 g Answer: A 130. Combustion analysis of 1. 200 g of an unknown compound containing carbon, hydrogen, and oxygen produced 2. 86 g of CO2 and 1. 134 g of H2O. What is the empirical formula of the compound? a. C2H5O b. C2H5O2 c. C2H10O3 d. C3H8O2 Answer: D 131. What is the stoichiometric coefficient for oxygen when the following equation is balanced using the lowest, whole-number coefficients? _____ C2H6O (l) + _____ O2(g) > _____ CO2(g) + _____ H2O(l) a. 9 b. 7 c. 5 d. 3 Answer: D 132. Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid. What is the coefficient for sulfuric acid when the equation is balanced using the lowest, whole-numbered coefficients? a. 1 b. 2 c. 3 d. none of these Answer: C