Essay writing on global warming
Essay Ideas With A Community Problem Solving Topic Criminal Jus Ce Rela Ed
Tuesday, August 25, 2020
Company Delta Airline Free Essays
Organization: Delta Airline 1. What are the significant business forms, I. e. We will compose a custom exposition test on Organization: Delta Airline or then again any comparative theme just for you Request Now tasks, the association does? Here I did chosen Delta Airlines as an organization for my examination. This organization is giving a wide scope of the air traffic offices in various pieces of the world. As it were we can say that there are numerous operational defeats of this aircraft organization and all the courses are a lot of advantageous. Another uniqueness of this organization is a verity of planes including airbuses and enormous and so forth. As of now the organization claims in excess of 700 unique planes of various size and limit. Delta Airline is giving offices to the individuals of the world to additional starting with one spot then onto the next via air. The administrations and offices of the organization are exceptionally useful for the travelers and furthermore this organization is giving enough income to the advancement of various air terminals and furthermore in aviation authority framework. They are additionally giving various sorts of gadgets and scanners for processing the sacks and other gear of the travelers on the air terminal. Rundown the data frameworks that are utilized to mechanize these procedures. The data arrangement of the delta aircraft is represented at various levels and stages. For dealing with all the data and information the organization is utilizing some E-trade stages and these stages are utilizing various procedures to assemble the data of the business procedure. What's more, as per the prerequisites of the organization these frameworks are giving overseen and sorted out information to various purposes. Organization is utilizing distinctive data frameworks to oversee and help their business as needs be. Most importantly they are utilizing an online site for complete subtleties and informationââ¬â¢s. They are likewise utilizing the ERP framework to interconnect diverse business procedure and areas. Clarify how ONE of these data frameworks is utilized to robotize one of the procedures. ERP is the principle and significant data framework and this framework is working in various workplaces of the organization and this framework is dealing with the inner exercises, methods and records of the organization. The entire working of the organization is modernized and for this reason they are utilizing an ERP framework to deal with the business exchanges and numerous different business methods. This ERP framework is dealing with all the inward and outside working of the organization and now the administrators and other administrator related individuals can get day by day, week after week, month to month and yearly reports of the business. The amount they are contributing and what is their result. And furthermore which defeat is increasingly valuable and which defeat is confronting lose. This framework can likewise mange the inward records of the organization, as various compensation bundles, deals and buy and so on. Henceforth, we can say that this data framework is giving a total access and usefulness to deal with the working and business of the organization Describe one complete circumstance in which an end client utilizes this data framework. Your depiction ought to be a literary story (in English), I. e. try not to utilize outlines. By utilizing site (data framework) the clients can get their necessary data and different asks effectively and precisely. By utilizing this data framework (site) the clients can explore their appointments and furthermore they can affirm their seats by choosing source and goal. This site is likewise giving various rules and offers to the clients. This data framework is totally dealing with the matter of the organization, in light of the fact that a total backend framework is working behind this site and this framework will gather all the informationââ¬â¢s. By utilizing this backend framework the supervisors can without much of a stretch get their necessary reports and data about the business bearing and patterns. Who heads the turn of events (or heads acquirement choices) of data frameworks in the association? Who is doing the arranging, investigation, structure, execution and upkeep? The CEO of the organization is filling in as head for settling on all the choices about the improvement of the organization and furthermore there is finished chain of various administration posts and everyone is contributing for accomplishing a solitary objective. The IT director of the organization is dealing with all the exercises about the data framework and for this reason he is legitimately associated all the sub workplaces and divisions of the organization. As such, the IT director is controlling all the strategies and enactments from the administrative center of the organization. He is the likewise liable for arranging and investigation of the data arrangement of the organization and the specialized and human asset office is structuring, executing and keeping up the data framework and different choices of the organization. At the end of the day we can say that the IT oversee is administering the data framework in the organization. Examine the framework advancement technique utilized? On the off chance that data frameworks are obtained from off-the-rack items, what is the procedure of acquirement that is utilized in the association? The data innovation consistently require changes and updation time to time, in light of the fact that new advancements and procedures are coming in the market, thatââ¬â¢s why, it is basic for the business associations and organizations to change and redesign their data innovation frameworks. Essentially, the prerequisites of the individuals and clients are likewise being changed with the progression of time and to satisfy the necessities of the clients organizations are hoping to change and update their data innovation framework and condition. The data framework is significant for the expert and precise working of the organization and this data framework is additionally expanding the working limit of the organization and then again this data framework is lessening their correspondence cost. Correspondingly, this data framework is additionally expanding the business income of the organization. In this sort of business, data framework can truly assist the organization to deal with their exercises all the more expertly and precisely, on the grounds that they are working in various nations and they have to interconnect and incorporate their entire business under one stage and data framework is giving this stage to interconnect all the areas and offices. Henceforth, we can say that the data framework for the Delta Airline is significant and advantageous. Indeed, the organizations need to update their data framework structure, in light of the fact that the market of the data is changing and furthermore the inclinations of the clients are additionally evolving. At the point when we take a gander at the data innovation framework of the Delta Airline then we come to realize that their structure is changing because of the prerequisites of the clients. Presently the clients needs to book and affirm the seat on the web and furthermore they need to get numerous different asks about the tasks and timings of the flights and different guidelines and guidelines. Presently this is the significant of the organization to give this office to the clients to get income, thatââ¬â¢s why, they gave every one of these offices and functionalities to contend with different aircrafts. Additionally their business techniques and inclinations are likewise being changed and to completely achieve the general conditions they have to change their data framework foundation. The up degree in the IS (data framework) foundation will assist the organizations to expand their income and furthermore the consumer loyalty will likewise increment. Another fundamental advantage of this procedure is the worth and endurance in the market, on the grounds that the organizations can just make due with changes in their business methodologies and in innovation foundation. This procedure won't cost them definitely, in light of the fact that they have a total stage and framework and they just need to update the framework with some new advancements and strategies. Talk about, in detail, the information assortment strategies you used to address the above inquiries. I used a wide range of information assortment methods to finish this exploration and to address these inquiries. The writing and web based looking through procedure is giving a wide scope of various data about the organization. The site of the organization contains total history, business process, business procedures and numerous other significant data and information about the organization. Another method which I used for the assortment of the information was the online hunt about the activities and data arrangement of the organization. And furthermore, I contact with representatives of the organization to get the data about their administrative layers and furthermore about the administrative exercises and duties. I additionally talk with some others and clients of the compony to get the data about the business exercises and furthermore about the data arrangement of the organization. At the end of the day we can say that I did gather the data and information by utilizing a wide range of methodologies and strategies. Give the subtleties of the individuals you met to respond to the above inquiries. Incorporate instances of the inquiries you posed to respond to these inquiries For of all I pose to certain inquiries to the clients of the organization about the administrations and activities of the organization and how they are getting their necessary data and administrations from the organization. For instance, â⬠¢ How the organization is giving the offices and administrations on the web? â⬠¢ Are you happy with the Information arrangement of the organization? â⬠¢ How they are overseeing inputs and demands? The administration and human asset branch of the organization is useful, in light of the fact that I posed numerous inquiries to the human asset operators of the organization about their exercises and data framework initiation. For instance, â⬠¢ what number data frameworks are working in the organization? â⬠¢ What is the administration level and who is administering the data arrangement of the c
Saturday, August 22, 2020
Cystic Fibrosis :: essays research papers
For a youngster with cystic fibrosis life is for the most part a progression of respitory contaminations specialists visits and prescriptions. Cystic fibrosis causes a development of bodily fluid in th lungs making breathing troublesome . The thick bodily fluid covers the hairlike projections lining air entry debilitating the bodys invulnerable framework .Excess bodily fluid interfers with the working of different oragns too.In the liver and pancreas bodily fluid obstructs the progression of the stomach related compounds in the digestive system so food isn't processed appropriately. Worn out by the rehashed episodes of ailment a cystic fibrosis quiet infrequently lives past their twenties. Cystic fibrosis is most regular acquired issue among Caucasian individuals. The malady which starts in earliest stages distresses in excess of 25,000 Americans and causes in excess of 500 passings consistently. Forty years back the normal life expectancy of a cystic fibrosis tolerant was five years .Today improved clinical treatments and nurtrient rich weight control plans have empowered cystic fibrosis endures to get by into adulthood. Investigation into the reason for cystic fibrosis peruses like an investigator story. One piece of information is that cystic fibrosis patients have abundance measures of sodium and chloride in their perspiration making it vey salty . At the University of North Carolina scientists found that salt lopsidedness caues thick bodily fluid to collect in the patients lungd. Elevated level of salt in lung cells coax water out of the bodily fluid making it thicken.The level of salt in a phone is determained by the development of particles over the phone membrane.Ions are conveyed across call memebranes by protein directs inserted in the phone film. Since the stucture and elements of proteins are determained by qualities issues with particle transport can be accepted to have a hereditary premise. In 1989 an American Canadian research group discovered th re imperfection in the quality called the cystic fibrosis transmembrane conductance controller quality ,delivers a protein that typically keeps up ordinary degrees of chloride. In about 60% of cystic fibrosis pateints the protein made by the CFTR quality is feeling the loss of an amino corrosive called phenylalanine
Wednesday, July 29, 2020
Valuable Advice on How to Write a 3-page Essay
Valuable Advice on How to Write a 3-page Essay As you journey through your college life, you will face different types of essay assignments. One of the essay types you will face is the three-page essay. But what should you do when you encounter this kind of assignment? This article will furnish you with the answers you need on how to write a 3-page essay. What is a 3-page essay? Before we delve into the nitty-gritty of writing a 3-page essay, it is necessary to understand what this form of essay is. A three-page essay allows a student sufficient space to come up with their arguments in a manner that lets them introduce and conclude those arguments. However, when tackling this kind of assignment, you should focus on following the instructions of the essay instead of worrying about how long it should be. Examining the question Taking your time to keenly examine the question of the assignment is one of the success keys on how to write a 3-page essay in 2 hours. The reason is that if you donât understand the question well, you will give the wrong answers to what your teachers expect from you. In the process of examining the question, you should establish what you need to do in the essay. Some of the things you ought to pay close attention to are as follows: The topic at hand: If you donât understand the topic of the assignment, you will fail in every other thing. The reason is that you may do all the best research, write with all the excellent grammar you can, but if you have not understood the topic, you will be like a soccer player who has scored an offside goal. So, ensure you understand what the topic is, and you should write before proceeding. Get the format: After understanding the question, you also need to understand the format you need to use. You have to find out if you are supposed to use a 12-point or an 11-point format. Also, find out if the teacher wants you to use single or double spacing. Do the research After establishing all the guidelines of the essay, and you are sure about the topic requirements, it is now time for you to shift your attention to what you will include in the essay. Here, you need to do research that will enable you to get the raw material with which to construct your assignment. Remember, if you fail at this point, the whole assignment will flop. You need to establish reliable sources of information. You can use both online and offline sources such as libraries, encyclopedia, publications, and books to get credible materials. You also need to identify sources you can access easily and on time. Make sure every material you use to write your essay has an established authority behind it. Formulate a thesis statement After gathering your raw materials, you need to come up with a stand on the topic at hand. Your thesis is your primary argument around which all the other arguments will revolve. Youâve got to draft your thesis in a manner that is clear, forceful, and easy to defend. Writing the body After you have formulated your thesis, you now need to begin writing the body paragraphs. The three body paragraphs will allow you to defend your thesis with reasons and supporting evidence. You can concretize your evidence by including reliable and authoritative quotations from authority figures in the area of study you are handling. Here, you need to include all the details you had pointed the reader to when you introduced the essay. Drafting the conclusion The conclusion should serve as the climax of your assignment. That is why the entire essay should progressively build up towards it with your best coming at this point. In the conclusion, you need to restate your thesis. Additionally, you have to take a few sentences to summarize the evidence and reasons you gave to support your thesis. Lastly, make your conclusion convince the reader of the merit and importance your arguments and thesis. Check the length After writing your essay, you should check it to ensure that it meets the length requirements and specifications. If it is too long, you will need to shorten it by cutting off some parts or if it is too short, lengthen it by adding new parts. Get essay writing help here This article has shared with you all you need to know on how to write a 3-page essay. You can now optimize these 3-page essay writing tips to sharpen your skills in writing these types of assignments. But if the inconveniences of life throw too much at you, and you end up choking in deadlines, our company can help you. We are professional writers dedicated to helping students with their essay assignments.
Friday, May 22, 2020
Censorship, Media Manipulation, And Betrayal - 957 Words
In George Orwellââ¬â¢s novel, 1984, he incorporates the major themes of censorship, media manipulation, and betrayal. The citizens of Oceania are constantly bombarded with different forms of propaganda, including the posters stating ââ¬Å"BIG BROTHER IS WATCHINGâ⬠and the Partyââ¬â¢s slogans, ââ¬Å"WAR IS PEACE, FREEDOM IS SLAVERY, and IGNORANCE IS STRENGTH.â⬠Giant telescreens constantly run streams of propaganda in hopes of making the Party appear superior to the Brotherhood. According to Big Brother, sexual interactions should be kept to a minimum and only occur to populate and produce more Party supporters. The Party strongly encourages the children of Oceania to join the Junior Spies, an organization that brainwashes them to report their parents or guardians if they feel they are being disloyal to the Party and Big Brother. Nothing is private in the territory of Oceania; technological mechanisms, such as small microphones and helicopters acting as drones, are installed throughout to constantly monitor its members. As media manipulation evolves and the citizens become further brainwashed, individuals have a big decision to make, whether to rebel against the Party or betray their old ways of life. The people of Oceania cannot express their true thoughts, emotions, and feelings about the Party for the fear that the Thought Police will catch and turn them in. These negative thoughts obviously exist, but not many individuals are willing to stand up for what they believe in and who theyShow MoreRelatedA Brief Note On The Culture Of Terrorism1518 Words à |à 7 Pagesworld culture of terrorism that is used by propaganda and censorship to blur the politics of globalization and technology, and restructure a totalitarian society. This paper will argue that the businesses of ââ¬Å"the U.S. media shill factoryâ⬠(Borjesson, 2004, p.165), the plottings of the ââ¬Å"brand basedâ⬠(Klein, 2000, P.421) corporations, and the multi-nati onal oil giants influence sectors of government by using deliberate strategies of censorship and propaganda to discredit government effectiveness, alienateRead MorePropaganda During The 20th Century And The Onset Of World War1741 Words à |à 7 Pagestitanic war elephants advancing across the Italian plain.â⬠Even ââ¬Å"the ââ¬Ërebel yellsââ¬â¢ of Confederate soldiers proclaiming that a charge was about to ensueâ⬠can be considered a sort of propaganda because in its most simple definition, propaganda is ââ¬Å"the manipulation of opinion.â⬠However, the modern propaganda which Americans are most familiar with is well summed up by the Merriam-Webster definition: ââ¬Å"ideas or statements that are often false or exaggerated and that are spread in order to help a cause, a politicalRead More Government Surveillance of Internet Activity Essay3550 Words à |à 15 Pagesimportant pieces of legislation. It included that any new authorities deemed necessary should be narrowly drawn to protect the privacy and constitutional rights of the millions of law-abiding citizens who use the Internet and other communications media on a daily basis [5]. However, such a declaration could not eliminate the worry from the general public. Civil libertarians voiced their concerns that cherished American freedoms would be sacrificed in the interest of safety. 2.1.2 Web surveillanceRead MoreMetz Film Language a Semiotics of the Cinema PDF100902 Words à |à 316 Pagesnoted of participants in a political parade who, transistor radio in hand, were listening, while demonstrating, to the live coverage of their own demonstration. But, perhaps because the inordinate overvaluation of the specificity of the audiovisual media may occasionally blur more general truths, sufficient attention has not been given to the fact that, for the listening demonstrators, the radio report remained entirely an account; for, at the precise moment they were listening, they were no longerRead MorePropaganda by Edward L Bernays34079 Words à |à 137 Pages121 135 141 150 PROPAGANDA FOR EDUCATION PROPAGANDA IN SOCIAL SERVICE . ART AND SCIENCE ..................................................... THE MECHANICS OF PROPAGANDA . . CHAPTER I ORGANIZING CHAOS THE conscious and intelligent manipulation of the organized habits and opinions of the masses is an important element in democratic society. Those who manipulate this unseen mechanism of society constitute an invisible government which is the true ruling power of our country. We are governedRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words à |à 656 PagesArguments that the new migrants are different and less able to assimilate than those in earlier waves often point to the rise in transnational connections and ease of return travel, the expansion of dual citizenship, the prevalence of home-language media, stronger ethnic and racial differences, the emergence of segregated labor markets that block advancement, and the illegal status of many migrants.69 Most of these arguments rest on weak historical foundations. In nations where assimilation is the
Saturday, May 9, 2020
Get the Scoop on Sample Paper Apa Before Youre Too Late
Get the Scoop on Sample Paper Apa Before You're Too Late All jokes aside, if you wish to succeed in college, you should be in a position to utilize APA Style fearlessly and confidently. Have just one topic to talk about in your paper. Now you are all set to start writing your very own annotated bibliography. Writing essays by yourself. This paper has to be answered in English. Apa Style Interview Paper Sample is visible that you explore on this site. When you are requested to present a testimony or Business Meeting Agenda Template research paper in a particular format, it is imperative to stick to all guidelines. You may also take a look at this page's Sample Research Papers in addition to these Sample Notebook Papers, which you might also find interesting along with helpful. Each section takes a title centered on the webpage. The most important title is included with the most suitable alignment. These elements are important for your article to be accepted. The table of content section is thought of as highly crucial in writing various forms of academic and non-academic reports. You've got to write in such a manner that every portion of your paper is going to have logical sequence and sound structure to help it become comprehensive and simple to comprehend. You can't avoid double spacing that is mandatory in the full paper. While an abstract also summarizes a guide, book, Web site or other sort of publication, it's purely descriptive. Writers don't stick to a specific side. Additional you are able to also take a look at these APA Cover Page Samples that you may also find useful. Sample term papers ought to be strictly weighed side by side with the matter of plagiarism. How to Find Sample Paper Apa There are a lot of crucial guidelines to keep in mind while writing. There is no simple path to success. Your primary aim is to clearly show your private opinion, backed with evidence and arguments, which means you will need to be quite attentive whilst reading the short article and noting down key elements. The goal in developing the primary points about the overall topic is to determine three primary points to be made about this issue. A History of Sample Paper Apa Refuted Take be aware that although it's supplied for free, you can wind up paying for it if you're idle. Regardless of the ample quantity of substantial research materials and intelligent ideas, the essay may wind up flawed in the event the student doesn't have effective writing skills. Our intent is to create a place that supplies the ideal writing experience possible for storytellers to achieve their audience. Many students opt to download such samples so as to find a general idea of the way the assignment should look like and what key points ought to be added. Sample Paper Apa Explained The Final Paper will concentrate on critiquing the varying statistical approaches utilised in every one of these studies. For instance a research paper so you've got to understand what does an excellent research paper look like. Write a brief summary of each one of the studi es. Go over the implications of the outcome of the study. The Ugly Side of Sample Paper Apa Within the text of the paper you acknowledge the usage of another authors material by employing parenthetical referencesthese references should offer enough info to allow the reader to get the complete citation in the list of references at the close of the paper. Only consist of bibliography or literature readings you have actually read. The APA citation is achieved by the template regardless of the amount of document. Annotated bibliography template is going to be a vivid example and you're going to be able to produce an outstanding annotation with no mistakes and flaws! A Appendix comprises the supplement content which is not directly linked to the text. The format can be adapted based on the nature and the topic of a custom made essay. This format employs the author-date process to properly cite outside understanding.
Wednesday, May 6, 2020
The Beatles the Greatest Band of All Time Free Essays
The Beatles: The Greatest Band of All Time? By: Erin Bozone Ask anyone. Read any music magazine. Go to any store. We will write a custom essay sample on The Beatles: the Greatest Band of All Time? or any similar topic only for you Order Now The Beatles are everywhere because of the legendary contributions they made to musical history and pop culture. They are frequently referred to as the greatest band of all time. But were they really? In this paper, I will compare and contrast two conflicting opinions on The Beatles: Howard Goodallââ¬â¢s documentary ââ¬Å"20th Century Greats: The Beatlesâ⬠and Piero Scaruffiââ¬â¢s written criticism on the band. I began reading Scaruffiââ¬â¢s web-based criticism, and despite being fore-warned of his unpleasant disposition, found its cynical and loathsome attitude to be unpleasant to read. Throughout the entire piece of writing, Scaruffi never ceased his constant verbal attack on The Fab Four, mercilessly calling them mediocre and generally uncreative musicians. He numerously accuses them of shameless imitation of other groups. He makes it very clear that he only believes The Beatles achieved their colossal fame due to extreme luck and just being at the right place at the right time. They arrived just as the white middle class were beginning to feel untrustworthy of the African-American-influenced Rock and Roll. They emerged out of nowhere with a polished and tamer version, stripped of itââ¬â¢s black roots that was more appealing and erased the idea it was a bad influence on the youth of the time. Scaruffi doesnââ¬â¢t believe The Beatles to be as world-shatteringly revolutionary as every single other person on the face of planet Earth does, bluntly stating that ââ¬Å"Their music was just easy to sell to the massesâ⬠¦ nd they were photogenicâ⬠. Scaruffi credits their immense success not to musical ability, but to the fact that they were sellable, appealed to a broad audience, and had an infinitely accomplished producer. Scaruffi knows that George Martin was acutely influential on The Beatles musical choices and techniques. He gets this right, although is cruel in his implied beliefs that none of the Beatles themselves contributed a single thing. I believe that he is unfair stating generally that The Beatles are ntalented and unoriginal. I believe this could maybe be applied to the shallow, simple music they were creating early in their career, but to say that overall they didnââ¬â¢t contribute anything at all wonderful is untrue. Over the short decade, they created, experimented and expanded so much that it is practically unfathomable. He does, however, offer slight praise of some elements of their later works such as Rubber Soul, Revolver, and Sgt. Pepperââ¬â¢s Lonely Hearts Club Band and rightfully so. After Scaruffiââ¬â¢s dismal, cutting composition, I warmly welcomed Howard Goodallââ¬â¢s Documentary ââ¬Å"20th Century Greats: The Beatlesâ⬠. I expected a much more adoring view that would better match my own opinions and that would generally be pleasant to watch. I was sadly mistaken. First of all, Goodall insists on singing the songs himself and only occasionally plays the original recording, which was unimaginably irritating to me, at least. And not only was Goodall incessantly annoying as a narrator, he blindly worships The Beatles while offering useless information. The entire documentary describes in minute detail about the musical techniques that The Fab Four used to revolutionize music, when really they had no idea they were even using them as they were writing the songs. The only person who wouldââ¬â¢ve had an idea they were using these fancy tactics accidentally would be George Martin. I did not hear Goodall mention George Martin onceâ⬠¦ and if he had, it must have been in passing. The only thing that Goodall got exactly right was the fact that they were brilliant at translating their feelings into music while virtually having no idea what they were doing musically, and that they did, indeed, change music forever. My own personal opinion, I think, would be somewhere in the exact middle between these two polar opposites. I love the music that The Beatles have created and think they were just spectacularly wonderful, but I also am able to recognize that a large percent of their brilliance was also contributed by George Martin and I accept that. I think the most impressive thing about The Beatles as a musical group is how much they accomplished. In just 10 years, they created so much. The monstrous amount of material the created is staggering. And all while experimenting, re-inventing techniques and making them their own, growing, learning, changing and finding themselves within the music is just mind-blowing and inspiring. Works Cited Goodall, Howard, dir. ââ¬Å"The Beatles. â⬠Howard Goodallââ¬â¢s 20th Century Greats. Channel 4: 2004. Television. Scaruffi, Piero. ââ¬Å"The Beatles. â⬠www. Scaruffi. com. N. p. , 1999. Web. 29 Nov 2011. . How to cite The Beatles: the Greatest Band of All Time?, Papers
Tuesday, April 28, 2020
Khalifah Essay Example
Khalifah Essay Answer Horizontal row of elements in the Periodic Table of Elements Atoms have 3 shells occupied with electron 1. Correct formulae of reactants and products 2. Balanced equation Cl2 + H2O HCl + HOCl Sodium Chlorine Red litmus paper blue Blue litmus paper red http://cikguadura. wordpress. com Mark 1 1 1 1 (ii) 2 4541/2 à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 3 Answer 1. Atomic size decrease 1. Proton number / number of proton / nuclei charge increase 2 Nuclei attraction on valence electron is stronger TOTAL 4541/2 Mark 1 No. (d)(i) (ii) 2 9 No. (a) Oxidation Answer Mark 1 1 1 1 1 1 (b)(i) To allow the movement / flow of ions (ii) (c) (d) Potassium nitrate solution [ any suitable substance] From copper electrode to silver electrode Intensity of blue colour solution increase Because the concentration /number of Cu2+ increase Cu (e) (f)(i) (ii) Cu2+ + 2e Formula of reactant and product Balanced Increase The distance between zinc and silver is further than copper and silver in electrochemical series TOTAL 1 1 1 1 10 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 4 4541/2 No. 4. (a) (b) Answer A chemical formula that shows the simplest ratio of atom of element in a compound. Number of mole = Mass Relative atomic mass Mark 1 1 (c)(i) (ii) (d) (e)(i) (ii) (iii) (iv) Num. of mole of copper = 2. 56 / 0. 04 64 Num. of mole of oxygen = 0. 64 / 0. 04 16 CuO Magnesium and hydrochloric acid / Zinc and sulphuric acid CuO + H2 ? Cu + H2O Black powder change to brown Water 2 1 1 2 1 1 TOTAL 10 No. 5(a)(i) (ii) Answer Temperature Num. of mole = 0. 24 mol / 0. 01 mol 24 Volume of H2 = 0. 01 x 24 dm3 / 0. 24 dm3 / 240 cm3 Mark 1 2 (b) Average rate of reaction in experiment I = 240 cm3s-1 / 4. 8 cm3s-1 50 Average rate of reaction in experiment II = 240 cm3s-1 / 12 cm3s-1 20 2 1 (c)(i) Rate of reaction of experiment II is higher than experiment I 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 5 4541/2 No. Answer Mark (c)(ii) -The temperature of reaction for experiment II is higher that experiment I. -The kinetic energy of the particles of reactants for experiment II is higher than experiment I. -The frequency of effective collisions increases. (d) 3 2 We will write a custom essay sample on Khalifah specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Khalifah specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Khalifah specifically for you FOR ONLY $16.38 $13.9/page Hire Writer TOTAL 11 No. 6(a) (b)(i) (ii) (iii) Answer To reduce the heat loss to the surroundings A shinny grey solid is formed / A colourless solution turns blue. Silver metal is formed / Copper(II) ions formed. Copper Oxidation number increase from 0 to +2 Mark 1 1 1 2 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 6 4541/2 No. (c)(i) Answer Num. of mole = 0. 5 x 100 / 0. 05 mol. 1000 Heat energy released = 0. 05 x 105 kJ / 5. 25 kJ / 5250 J Mark 2 1 (ii) ? = 5250 / 12. 5 oC 100 x 4. 2 (d) 1. Axis with label energy and two level, 2. Correct position of reactants and products, 3. ?H = -105 kJmol-1 1 1 1 TOTAL 11 3 No. 7 a (i) Answer Mark C p=6 n=8 1 [Draw and label] [Able to describe the atom Carbon-14] Has nucleus at the centre of the atom nucleus contains 6 proton and 8 neutron has 2 shell occupied electron 4 valence electrons 1 1 1 1 Max 4 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 7 4541/2 No. (ii) Answer Carbon-12// Carbon-13 6 // 7 12 C 6 // 13 C 6 Mark 1 1 1 . 3 1 1 1 . 3 (b)(i) P Boiling point P higher than melting point naphthalene Naphthalene is flammable ii) (c ) At time t1 ââ¬â t2 Naphthalene is in liquid state The molecules are closely pack The molecules not in orderly arrangement The kinetic energy decrease At time t2 ââ¬â t3 In liquid and solid state The molecules are closely pack Some molecules are in orderly arrangement but some are not in orderly arrangement. The kinetic energy is constant At time t3 ââ¬â t4 In solid state Th e molecules are closely pack The molecules are in orderly arrangement Mark 1 + 1+ 1 1 1 + 1+ 1 The kinetic energy 1 + 1+ 1 decrease TOTAL 20 4541/2 http://cikguadura. wordpress. com Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 8 Sub Mark 1 1 1 1 1 1 1 1 1 1 4541/2 Mark No 8(a)(i) Answer Solvent X : Water / H2O Solvent Y : Propanone / Methyl benzene / [ any organic solvent] 2 (ii) 1. Hydrochloric in solvent X / water reacts with copper(II) oxide 2. Hydrochloric in solvent Y / propanone does not reacts with copper(II) oxide 3. Acid only shows its acidic properties when dissolve in water 4. In the present of water, hydrochloric acid ionize to form H+ ion 5. The H+ ion causes the hydrochloric acid reacts with copper(II) oxide // 6. H+ + CuO Cu2+ + H2O 7. Produce copper(II) chloride / Cu2+ ion 8. In propanone, hydrochloric acid exist as molecule // In propanone, H+ ion is not present 1. Neutralisation 2. Correct formulae of reactant and product 3. Balanced equation CuO + 2HCl CuCl2 + H2O 4. Number of mole of HCl = // 0. 05 8 (iii) 1 1 1 1 1 1 6 5. Number of mole of CuO = // 0. 025 mol 6. Mass of CuO = 0. 025 X (64 + 16) g // 2. 5 g (b) 1. Sodium hydroxide is a strong alkali // Sodium hydroxide ionises completely in water 2. Ammonia is a weak alkali // ammonia ionises partially in water 3. The concentration of hydroxide ions in sodium hydroxide is higher than in ammonia solution. 4. When the concentration of hydroxide ion is higher, the pH value is higher TOTAL 1 1 1 1 20 SULIT 4 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT No 9 (a) Answer General formula : CnH2n 9 4541/2 Mark n= 2,3â⬠¦Ã¢â¬ ¦Ã¢â¬ ¦ 1 1 Functional group : Double bond between carbon atoms/ C=C Structural formula : [But-1-ene // But-2-ene] Example : 1 3 (b) C4H8 + H2O C4H9OH 1 1 Max 1 2 1 3 (c) 1. Y is unsaturated hydrocarbon 2. Y react with bromine 3. Butane is saturated hydrocarbon 4. Butane does not react with bromine Sample answer List of material : Butanol, [etanoic acid ], concentrated sulphuric acid Procedure : 1. Pour[2- 5 ]cm3 butanol into a boiling tube 2. Add [2- 5 ] cm3 of ethanoic acid . 3. Add 3 drops of concentrated sulphuric acid . 4. Heat the mixture carefully over a small flame 5. Boil the mixture slowly about 2 to 3 minutes. 6. Pour the content of the boiling tube into the beaker containing water 7. Smell the contents of the beaker. 8. Observation : Fruity smell substance produced 910 Chemical equation : C4H9OH + CH3COOH Correct formulae of reactants Correct ormulae of products 11. Name : Buthyl ethanoate CH3COOC4H9 + H2O 1 1 1 Max 10 Condition: Temperature : 300oC Pressure: 60 atm Catalyst: Concentrated Phosphoric acid 1 1 1 1 4 (d) 1 1 1 1 1 1 1 1 1 TOTAL 20 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 10 4541/2 No 10(a) Answer Acidic gases released in industries dissolved in rain water / water vapour to form electrolyte which increases the rate of rusting Sub Mark 1 1 1 1 Mark 2 (b) 1. Reaction I is not a redox reaction 2. No change in oxidation number for all elements before and after the reaction. / HCl + NaOH ? H2O + NaCl Oxidation No. +1-1 +1-2 +1 +1 -2 +1 -1 3. Reaction II is a redox reaction 4. Oxidation numbers of magnesium increases (from 0 to +2) and copper decreases (from + 1 to 0) // Mg (s) + Oxidation No. 0 (c) Step I Chemicals used Any suitable oxidising agent / e. g : Copper(II) sulphate solution II Any suitable reducing agent / e. g : zinc powder Observation Correct corresponding observation / Blue solution of Copper(II) sulphate solution becomes paler or colourless. Correct corresponding observation / zinc powder dissolves // brown colour of iron(III) ions becomes pale green. 1 4 CuSO4 (aq) ? MgSO4 + Cu +2 +2 0 1+1 1+1 4 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT SULIT 11 4541/2 (d) Sample answer ? Labeled diagram : 1. Functional apparatus 2. Label (consists of one reducing agent and one oxidizing agent in solution form separated by a salt bridge) Sample answer ? Procedure : 3. Filled the ââ¬Å"U-tubeâ⬠with dilute H2SO4 until 5 cm from the mouth of each arm 4. Add potassium iodide solution carefully to one arm and bromine water to another arm until 3 cm height 5. Immersed the carbon electrodes to each arm and connect to the galvanometer using connecting wire. 6. Record the observation. ?Half-equations involved : 7. Electrode in KI / Anode : 2 I ? I2 + 2e 8. Electrode in Br2 / Cathode : Br2 + 2e ? 2 Br ? Observation : 9. Electrode in KI / Anode : colourless solution of KI becomes brown 10. Electrode in Br2 / Cathode : Brown colour of bromine becomes colourless. TOTAL 20 1 1 1 1 1 1 1 1 1 1 10 END OF MARKING SCHEME 4541/2 http://cikguadura. wordpress. com à © Trial2011 Hak Cipta Sekolah Berasrama Penuh SULIT 1 SULIT MARKING SCHEME 4541/3 CHEMISTRY Paper 3 Question Rubric Able to state all observations correctly. Sample answer: Experiment I II 1(a) Able to state one observation correctly Able to state an idea of observation. Sample answer: Experiment I : air bubbles Experiment II : Size decreases No response or wrong response Question Rubric Able to state the inference correctly based on observation. Sample answer: Copper (II) ion / Cu2+ produced // Copper ionises // Copper released electron // Copper is oxidised. Able to state the inference incorrectly 1(b) Sample answer: Atom changed to ion. Able to state an idea of inference Sample answer: Copper changed // ion discharged No response or wrong response 2 Observation at anode Bubbles of gas released//effervescence occurs Copper / anode becomes thinner/ dissolved/ smaller. 3 Score 4541/3 1 0 Score 3 2 1 0 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com 2 SULIT Question Rubric Able to give the hypothesis accurately Sample answer: When copper electrodes are used instead of carbon electrodes, the types of products formed at the electrodes are different// Different electrode/anode produces different products. Able to give the hypothesis almost accurately Sample answer: Different products produce when different electrode/anode is used. Able to state an idea of hypothesis Sample answer: Different cells give different products// Electrode change/ affect/ influence product No response or wrong response Question Rubric Able to state the three variables correctly Sample answer: Manipulated variable : Type of electrode/anode // opper and carbon Responding variable : Product at the anode // Product of electrolysis Constant variable : Copper(II) sulphate//CuSO4// Electrolyte// Concentration of electrolyte r: Volume Able to state any two variables correctly Able to state any one variable correctly No response or wrong response Rubric Able to predict the product correctly Sample answer: Chlorine gas/ Cl2 Able to predict the product less accurately Sample answer: Halogen gas Able to state an idea of product. Sample answer: Greenish-yellow gas // Bubbles of gas// oxygen No response given / wrong respo nse 4541/3 Score 3 1(c) 2 1 0 Score 3 1(d) 2 1 0 Score 3 Question 1(e) 2 1 0 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com 3 SULIT Question Rubric Able to measure all the height of precipitate accurately with one decimal places. Answer: 1 2 3 4 5 6 7 0. 5 0. 9 1. 3 1. 6 2. 0 2. 0 2. 0 [0. 4[0. 8- [1. 2- [1. 5- [1. 9- [1. 9- [1. 90. 6] 1. 0] 1. 4] 1. 7] 2. 1] 2. 1] 2. 1] Able to write any 5 readings accurately // All readings correctly but without decimal places. Able to write any 3 readings correctly. No response given / wrong response Test tube Height of precipitate 4541/3 Score 2(a) 3 2 1 0 Question Able to draw the graph correctly i. i. iii. iv. Rubric Axis x : volume of barium chloride / cm3 and axis y : height of precipitate/ cm Consistent scale and the graph half of graph paper All the points are transferred correctly Correct curve Score 3 2(b) Able to draw the graph incorrectly 2 Axis x : volume of barium chloride and axis y : height of precipitate // Inverse axes ii. Consistent scale iii. About 5 points are transferred correctly iv. Correct curve Able to state an idea to draw the graph 1 i. Draw the axis x and axis y ii. Inccorrect curve. No response or wrong response i. 0 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. ordpress. com 4 SULIT Question Rubric Able to state the volume and calculate the number of mol correctly Answer: 1. 5 cm3 2. No. of mole = 0. 5 x 5 // 0. 0025 mol 1000 Able to state the volume correctly or calculate the number of mol correctly Sample answer: 5 cm3 // 0. 5 x 5 // 0. 0025 mol 1000 Able to state an idea to calculate Sample answer: 5// 0. 5 x 5 No response or wrong response 2 4541/3 Score 3 2(c) 1 0 Question Rubric Able to write the ionic equation correctly. Sample answer: Ba2+ + CrO42- ? BaCrO4 Able to write the ionic equation incorrectly. Sample answer: Ba2+ + CrO42- // BaCrO4 // Ba+ + CrO4- ? BaCrO4 Able to state an idea of writing equation. Sample answer: BaCl2 + K2CrO4 ? BaCrO4 + 2KCl No response or wrong response Score 3 2(d) 2 1 0 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com 5 SULIT Question Rubric Able to give the meaning of the precipitation reaction correctly. Sample answer: Yellow precipitate is formed when barium chloride solution reacts with potassium chromate (VI) solution. Able to give the meaning of the rate of reaction less accurately. Sample answer: Yellow precipitate is formed Able to give an idea of the rate of reaction. Sample answer: Double decomposition reaction No response given / wrong response 4541/3 Score 3 2(e) 2 1 0 Question Rubric Able to classify all the salts correctly Sample answer: Soluble salts Sodium carbonate, Na2CO3 Magnesium nitrate,Mg(NO3)2 Insoluble salts Lead(II)sulphate, PbSO4 Silver chloride, AgCl Score 3 2(f) Able to classify any three salts correctly Able to classify any two salts correctly or give opposite answers Sample answer: Insoluble salts Sodium carbonate, Na2CO3 Magnesium nitrate,Mg(NO3)2 Soluble salts Lead(II)sulphate, PbSO4 Silver chloride, AgCl 1 2 No response given / wrong response 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com 6 SULIT Question Rubric Able to give the aim of the experiment correctly. Sample answer : To compare the heat of combustion of different alcohols/(methanol, ethanol, propan-1-ol) Able to give a relevant idea with the problem statement or aim of the experiment. 3 (a) Sample answer : To de termine heat release when alcohols is burn// Does alcohol with a higher number of carbon atoms per molecule have a higher heat of combustion? // Does combustion release different quantity of heat? No response or wrong response 1 Score 4541/3 2 0 Question Rubric Able to state all variables correctly. Sample answer : Manipulated variable :Different type of alcohols// type of alcohols//methanol, ethanol, propan-1-ol Responding variable :Heat of combustion Score 3(b) Controlled variable :Volume of water// copper can// thermometer Able to state any two variables above correctly. Able to state any one variable above correctly. No response or wrong response 3 2 1 0 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com 7 SULIT Question Rubric Able to give the hypothesis of the experiment accurately. Sample answer : The higher the number of carbon atoms in the alcohol molecules, the higher the heat of combustion Able to give the hypothesis of the experiment correctly. Sample answer : The heat of combustion increases when the number of carbon per molecule of alcohol increases// Different types of alcohols have different heat of combustion// The larger the size of alcohols molecule, the higher the heat of combustion//when the molar mass of alcohol increases the heat of combustion increases. Able to give a relevant idea with the hypothesis of the experiment . Sample answer : Size/molar mass of alcohol molecule affect the heat of combustion. Number of carbon atom in alcohol affect the heat released in combustion// Alcohols have different heat of combustion. No response or wrong response 1 Score 4541/3 3 2 3(c) 0 Score Question Rubric Able to give the list of the materials and apparatus correctly and completely sample answer: Material: methanol, ethanol, propan-1-ol, water Apparatus :Copper can, tripod stand, thermometer, measuring cylinder, spirit lamp, weighing balance, wooden block, wind shield. Able to list out all he materials and the apparatus correctly but not completely Sample answer : methanol, ethanol, propan-1-ol, water Copper can, thermometer, spirit lamp, weighing balance. Able to give an idea about the list of the materials and the apparatus. Sample answer : Thermometer and any one substance No response or wrong response 3 3( d) 2 1 0 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com 8 SULIT Question Rubric Able to state all procedures correctly Sample answer : 1. 100 ââ¬â 250] cm3 of water is measured and pour into a copper can. 2. The initial temperature of water is recorded. 3. The copper can is placed on a tripod stand. 4. A spirit lamp is filled with methanol and the initial mass is weighted and recorded. 5. The spirit lamp is put under the copper can and the wick of the lamp is lighted immediately. 6. The water is stirred with the thermometer until the temperature rises about 30oC. 7. The flame is put off and the highest temperature is recorded. 8. The spirit lamp and its content is weighed immediately and the final mass is recorded 9. Steps 1 to 8 are repeated using ethanol and propan-1-ol to replace methanol Able to list down steps 1,2, 4,5,7,8 and 9 2 Able to list down steps 2, 5 and 7 1 No response or wrong response 0 Score 4541/3 3(e) 3 Question 3(f) Rubric Able to tabulate the data with the following aspects: (i) Correct titles (ii) Correct unit (iii) Complete list of alcohols Types of alcohols Methanol Ethanol Propan-1ol Initial temperature/oC Highest temperature/oC Initial mass of spirit lamp/g Final mass of spirit lamp/g Score 3 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. ordpress. com 9 SULIT 4541/3 Able to tabulate the data with the following aspects: (i) Correct titles (ii) Complete list of alcohols Sample answer: Types of Initial alcohols temperature Methanol Ethanol Propan-1-ol Highest temperature Initial mass of spirit lamp Final mass of spirit lamp 2 Able to exhibit the tabulation of data less accurately Sample answer: Types of Initial alcohols temperature Me thanol 1 Ethanol Highest temperature No response or wrong response . 0 END OF MARKING SCHEME 4541/3 à © 2011 Hak cipta Sekolah Berasrama Penuh Trial SPM 2011 http://cikguadura. wordpress. com
Subscribe to:
Posts (Atom)