Rate of Reaction Coursework Essay -- GCSE Chemistry Coursework Investi

Rates of Reaction A chemical reaction can only occur between particles when they collide (hit each other). Particles may be atoms, ions or molecules. There is a minimum amount of energy which colliding particles need in order to react with each other. If the colliding particles have less than this minimum energy then they just bounce off each other and no reaction occurs. This minimum energy is called the activation energy. The faster the particles are going, the more energy they have. Fast moving particles are more likely to react when they collide. You can make particles move more quickly by heating them up (raising the temperature). Changing the Rate of a Reaction. There are 5 ways to increase the rate of a chemical reaction. They are all understood in terms of collision theory. The rate of a chemical reaction may be increased by 1) Raising the temperature. 2) Increasing the concentration (in solution). 3) Increasing the pressure (in gases). 4) Increasing the surface area of a solid. 5) Use a catalyst. Measuring the Rate. The reaction between sodium thiosulphate solution and dilute hydrochloric acid. HCl + sodium thiosulphatearrowsodium chloride + sulphur dioxide + sulphur + water. HCl(aq) + Na2S2O3(aq) arrow NaCl(aq) + SO2(g) + S(s) + H2O(l) The solid sulphur (S(s)) formed in this reaction makes the colorless solution go cloudy. The reaction is usually carried out in a flask placed on a piece of white paper which has a ...

Doing Business in Europe :: Essays Papers

Doing Business in Europe 1. Common Market The first chapter deals mostly with the definition and pecularities of the so-called Common Market, formed from countries of European Union. The Common Market encloses European Union of Coal and Steel, European Economic Union and European Nuclear Energy Union. Since 1967 the European Union has the following non-national and intergovernmental bodies: Cabinet of Ministers, Commission of European Unions, European Parliament and Council of European Unions. Before the 1970, the countries of European Union were supporting the budget of European Union at the cost of their national budgets. Since April 1970, the Common Market holds its own resources independently from budgets of supporting countries. This fact makes the administrative bodies of European Union independent. 2. Tax System Common to Europe and all the world is the tax system which includes all or most of the following taxes: Income tax, Corporation tax, Trade tax, Turnover tax, Property tax, Heritage tax, Purchase of Land tax. 3. International Concerns, Transnational Corporations and their policies These include the definite politics in the field of profitability of foreign branches. The policy is aimed to gain high profits in countries with comparatively low taxes, and in the countries with high taxes the accumulated profit must be lower. The common goal of transnational corporations is, of course, to preserve the liquidity and profitability of foreign branches. Thus such branches are required to send certain information to the main office each month or each quarter. 4. World Currency System European Market is a sum of currency operations which are done at the free world market outside of native country. The international currency terminology distinguishes such currency markets as: currency markets, where the trade of foreign currencies is done within the home country, and the euromarket, where the trade of foreign currencies is done outside of the home country. 5. How to Sell in Western Market Common conditions for success are like a set of rules. The first rule states: it is comparatively easy to produce something, but selling it is a challenging task. The main principle of survival for manufacturer is to produce goods that can be sold, not to sell what the company produces. The common conditions for survival on the market include high quality of the product, fast and cheap support, satisfactory warranty period, and good marketing. Here the cultural differences must be considered, together with the information about prior experience is selling the particular product inside and outside of the home country, mentality differences, pace of progress, culture values, religion.

Television and College Life Essay -- Television TV

Television and College Life After a long day of classes, I just like to lie down on the couch and relax while watching my favorite television show. Like me, this is how many college students end the day. After conducting a series of surveys and interviews, I realized that, even though we all like to watch our favorite shows, we prefer different shows and watch them at different times in different ways. My overall goal was to determine if there was any difference in television viewing based upon gender. In addition, I hoped to learn: how much TV college students watch per day; if viewers look forward to watching a particular show; if college students use TV as an escape from the everyday pressures; and, if they â€Å"channel surf† or remain with one channel throughout an entire program. Before beginning my survey, I had some preconceived notions about the types of answers that I would obtain. I decided to survey ten college students. I included five male and five female subjects in my survey to be equitable as well as to determine preferences based upon gender in my results. I surveyed two of my male roommates and one female roommate. The remaining participants were random friends who visited our house. This was an easy and effective way to conduct my surveys. Having so many roommates means there are always a variety of people who come and go from our residence. Although this was a simple way to conduct my survey, I was not certain that it would be an accurate sampling. Even though there were a variety of individuals frequenting our house, they seemed to possess many similarities. My fears were unfounded because those surveyed preferred various programs, providing the basis for unbiased results... ...been something like ER or Ally Mcbeal. IUP has 15,000 students; this survey was only a small sampling of the University’s student population. To get more accurate results, I might have surveyed a larger sample of people or included people whom I do not know. Also, I should have conducted interviews with more people whom I do not know well. These changes would have provided a better insight into what type of viewers and viewing habits of people I do not know. Although my results were not what I expected, I am very pleased about what I learned. I have conducted interviews before, but I have never conducted a survey. It was challenging yet interesting to draw up the questions for the survey. In this way I was able to ask questions to which I wanted the answers. Overall I felt this was a worthwhile experience that was educational and enlightening.

Discussing ‘Phonics They Use: Words for Reading and Writing’ Essay

Learning ‘phonics’ for reading and writing improves a science class, indeed. Cunningham’s book shows vivacity and optimism; free from obscure and often pretentious language marked by circumlocutions and long words. As an analysis, the author determines the significance of a method of teaching beginners to read and pronounce words by learning the phonetic value of letters, letter groups, and especially syllables, particularly for the high school science class. However, there are circumstances in which a high school science teacher becomes annoyed and aggravated; since, he/she handles science class, it is no longer his/her job to teach the pronunciation(s) of every science and/or technological terminologies/terms, which should be undergone during an English class. Thus, it is a waste of time. Part five of the book (Coaching, Assessment, Research, and Jargon) brings with methodological conceptions, assessment and theory for teaching students one-on-one. Examples concern â€Å"beginning reading strategies† (p. 173), â€Å"sight word, decoding, and spelling behaviors† (p. 177), and a marking system for any 100-word reading assessment (p. 175). The Theory and the Research—The Why Underlying the How (chapter 14) shows an assessment on phonics (a method of teaching beginners to read and pronounce words by learning the phonetic value of letters). As an analysis of the entire view, it is necessary for a high school science teacher to use such an educational tool and take the required test of phonics jargon. Hence, using phonics is an aid not only for a high school science teacher but also for the whole class, indeed. Cited Works Cunningham, Patricia. â€Å"Phonics They Use: Words for Reading and Writing. † Fourth Edition. New Jersey: Published by Allyn & Bacon, 2004. 224p.

Social Problem

Nowadays , social problems are very serious and we should pay more attention to these problems. As a part of the community , we should be concerned about social problems. Every day we read the newspaper and get the news from media, almost every day the newspaper and the media reports are about the social problems. All sorts of social problems will appear in our surrounding , but we cannot turn a blind eye and a deaf ear. We need to find ways to solve these social problems so that the society will not be mess order.Social problems are some condition , set of events or group of persons constitutes a troublesome situation that needs to be changed or improved. Social problems are like time bomb , when it explode, it will be out of control. Social problems let us live in a pressured situation. Today’s society there are too many examples of social problems, I took a few more popular examples to explain in detail. Explain the social problems in the end how it affects the growth of ou r country and the ways of prevent to reduce the social issue. Now, we take a look at what social problems are the most popular .Firstly ,the most common and the most serious social problems in our life are gangsters. Speaking of gangsters, will make people tremble with fear. Gangsters are not limited to age, previous may be older establishment gangsters, now both primary and secondary schools also have a group of students create a own gangster within the school. They will require students to pay a protection fee , if students do not, they will use means to force students pay protection money . Gangsters may intimidation , harassment and find someone to hit the student until the student willing to pay money.As long as someone offended gangster boss or brother, the man must not be at peace. Gangsters will send someone to give warning and told the man who is the stronger one. Gangsters also smoking , fighting , make trouble and provoke others everywhere. In short , they do any bad thin g, also bully the weak . New gangs also never lost on the old gang . Next, the gangs will cause the growth of our country to have a negative impact . These will be brought to the community a lot of unnecessary trouble and fear. So that the country would be in a very unstable state.People in other countries will be disappointedin our country, they are afraid to trade in our country and the economic will downturn . Just so that our country is greatly losses and enough to affect the development of the country . Moreover , there are several ways to prevent the establishment of gangs . The first step is whenever you see someone organization gangs immediately alarm . Second is counselors to counsel these kids . Also let the parents pay more attention to children’s behavior and trends ,and more concern for children .The second problem is traffic jams , in our country always occur the traffic problems especially during the peak time are often traffic jams . I often think that our cou ntry really is so many cars ? Our country has many public transport can ride like bus and LRT . In the end is too rich or people do not want to take the public transport with others or they do not want wake up early to catch the bus and LRT . In my observation , most of the vehicles are driving one in the working hours . And a family is more than owning a car . When there is the festival season , have long queues of vehicles on the road .People are required to spend half a day in the car ,it's really a headache . Apart from that ,this problem makes our country's poor reputation when it comes to the transportation. Foreigners evaluation of our traffic is low. Affect the ranking of our country is seriously lagging behind . This is enough to affect our reputation severely damaged . Following that ,have a problem we have to go to solve . The solution of a traffic jam is government can greatly promote the public transport and explain the advantage of using public transport .If just your colleagues or friends to the same place , that simply driving a car is enough or everyone turns driving their own car with a colleague or friend . As long as people are willing to comply , then the problem can be solved . The third problem that I think need to be paid more attention to is illegal immigrant. Illegal immigrants mixed the name suggests is that there is no approved . Illegal immigrants once they are caught will suffer severe punishment or be forced to exit or leave to country they are in.If the illegal immigrants think that the country is not properly managed, these immigration will be able to sneak into our country without any fear of being caught or punished . Our country has a huge and important part of responsibility and also need to ensure that there are no problems in the country due to these immigrants. Illegal immigrants seemingly innocuous, but in fact , it hurt not to be looked down upon small . Their arrival so that people reduce jobs , because their low sala ries , better efficiency and the important one, they are hardworking than people in our country .The other is that they cause a lot of distress and they will rob and trouble . Many social chaos is manufactured or are cased mostly by them . We should immediately think of a way to solve this problem so that we are getting the security and tranquility. The checkpoint staff must strictly regulate immigration checkpointsand not to let them muddle through . People are urgerto pay very close attention to suspicious person around and if found, it has to be immediately notifiedto the police . Police and people ‘s cooperation are essential and vital to crack down on illegal immigrants.The fourth social problem is divorce which happens in every place around the world. There will be a divorce as long as there are men , women , and married . I really cannot figure out why people want a divorce and had chosen to marry . Although divorce is very easy , but the marriage is not child’ s play . Since the original thought of marriage , think of the consequences of divorce , do not impulse bad throughout life . The high divorce rate is not a good thing for a country . If the divorce rate is higher , on behalf of the people does not pay attention to the views of marriage .Marriage is a sacred thing , many people have opted for early marriage . For this reason and cause the divorce rate to improve . This country has given the impression that marriage is a failure , this once again undermines the reputation of the country . What method can reduce the divorce rate ? It is up to people to their own ideas . Government should be called on the people to not be too early marriage , early marriage has a lot of potential problems . Now , society difficult and having a family is not an easy task .Marriage gave birth to the child , if divorce the child does not have a perfect family environment to grow and will leave to childhood shadow . Ultimately suffering only child . So , th ink about it before marriage . The fifth is environmental pollution problems , this is also the community most concern . Environmental pollution refersto human discharged to the environment than its self-purification capacity of substances or energy , so that the quality of the environment to reduce the phenomena of an adverse impact on the survival and development of humanity , ecosystems , and property .The most common are water pollution , air pollution , and noise pollution . Water pollution will harm to human death and directly affect the water quality of the drinking water source then produce many diseases . Furthermore , it will constrain economic development because the industrial use of water as a raw material or washing products and directly participate in the processing of products. Deterioration of the water quality will directly affect the quality of product. Water pollution for human health , agriculture , fisheries and other sideline have largely affected the developm ent of the economy!Air pollution will affect the body health and also the impact of weather and climate . People believe that climate change may cause a variety of air pollutants , carbon dioxide has a significant role in . The content of carbon dioxide in the atmosphere according to the current rate of increase continues , after a number of years will make the north and south ends of the ice melting , leading to global climate anomalies . Noise pollution will damage to the hearing of the human body . The worse case can cause deafness. Noise can induce a variety of diseases .The impact of noise on sleep great , people even in sleep , hearing , have to bear the noise stimulus . It will distract people ’ s attention , leading to unresponsive , fatigue , decreased work efficiency and error rate rise . So, we must not underestimate the importance of these three pollution damaged. It must find a way to prevent . Prevention and treatment methods for all pollution is severely punish ed or give warning to them . Noise prevention measures is to minimize the sound decibel value or use sound – absorbing , sound insulation , noise barrier isolation and other measures .For air pollution is reducing emissions of pollutants and afforestation . There is also a most important is to start with ourselves . Do not throw waste , the perfect city is everyone ’s responsibility . Lastly , the way of preventing water pollution is before we drink the water , we boiled or filter it . We also can actively promote â€Å"clean production† . Clean production to change the existing unsustainable methodsof raw material and energy consumption , to encourage sustainable production using non- toxic products . Of course , our government should control our environment .Cannot just verbally agreed to without action because protecting the environment is everyone ‘s responsibility . As a conclusion , all these issues makes me feel , is social change or human nature ha s changed . Only human indifference , will bring up this society today . We can really make it cool treatment? Our society is reduced to a point where it is we want to do ? The first condition is the protection of society the people must lead by example . In fact , as long as everyone concerted effort to make a change, it certainly can . If everyone changed , then the social will peaceful . I sincerely hope we can do this !

Compare and Contrast: Byzantine Empire and the Aztecs Essay

The early civilizations of the byzantine and Aztec empires rose to power using a variety of tactics. They were both very successful and very powerful up to a certain point. The byzantine and Aztec empires both used military strategies and advancements in war. Although while the Byzantine Empire used Christianity to unify its people, the Aztecs made people fear them by using human sacrifices. Also the byzantine was a bureaucracy with an emperor who was thought of to be chosen by the gods to rule over the people, however, the Aztecs had a ruler who was seen as an actual god. The Byzantine and Aztec empires had very strong military tactics which led to expansion and advancement. The Byzantine conquered almost all of the land around it and had many skilled warriors. This is much like the Aztecs who had skilled warriors and even though they didn’t necessarily conquer the land, they took control of the people and made them pay tribute. The Aztecs captured people for human sacrifices many times and this was an adapted technique they used, while the Byzantine used the technique of the â€Å"Greek fire† which was an invention similar to a flamethrower. In the Byzantine Empire there was a main religion and in the Aztec empire hey were highly reliant on human sacrifice to scare people into joining the civilization. The Byzantine empire used the newly found religion of Christianity to unify its population and make them a whole. The Aztecs however, believed in multiple gods and used human sacrifices to make other people fear and respect them. This tactic was also used to get them to join and scared them into paying tribute to the Aztecs or the Aztec gods. There was an emperor in the Byzantine Empire who had much influence because people thought he had been chosen by god; this was similar but not exactly the same as the Aztecs who had a leader that was thought of as an actual deity, or god. Because the Byzantine ruler was thought to be chosen by god, he had power and control over his own civilization and also those that he tried to conquer. The Aztec leader had divine power over his people and since everyone viewed him as a god it would be wrong to defy him. For this reason, he had influence and power over other places, as well as his own.

Good and Bad Experiences Essay

One of the many memorable scenes in Lac Su’s memoir, I Love Yous Are for White People, takes place in Chapter Four. It is the scene where Lac’s father takes his family out to buy their first restaurant meal. I find it a very interesting and hilarious scene. Pa receives some extra food stamps from Uncle Sam, so he decides to take his family out to the restaurant around the corner of their house. Obviously, this is the first time of them eating in the American restaurant; therefore, everything is kind of new for them. Since the only one who knows English in the family is Lac, it is not quite easy for them to order foods. The family has to order food through Lac, or they point at the pictures on the menu to order. Even when the food arrives at their table, which are hamburgers and French fries, they still do not know what those are and how to eat them. Lac’s father even asks him if they need to use chopsticks to eat the hamburgers, and says the other patrons are sav ages when he sees they eat hamburgers with their bare hands. When they are done eating and the bill comes, the father pays the bill with the stamp foods, and it drives the waitress crazy when she keeps explaining to Lac’s father that the restaurant doesn’t take stamp foods but he doesn’t understand what she says. However, when the manager comes to their table to solve the problem, he accepts it. He takes all the stamp foods and twelve dollars cash and jettison the family out. This is a very hilarious scene in the memoir, and I remember this scene the most throughout the whole book. This memoir also examines the emotional and physical damage Pa causes for Lac Su. First, when he notices that Su steals money from the piggy bank, Pa whips Su as soon as they get home. Second, Pa forces Su to take all his clothes off until Su is completely naked. Next, Pa throws Su out in the crowded street to let him feels ashamed even though he insists Pa not to and cries. Then, Pa yells out to the street to make sure everybody notices Su when he’s naked (117). All the neighbors come out to street and laugh at Su. (117). When Pa finally lets Su go back inside, he still lectures Su for two hours and doesn’t care how tired and shocked Su is. In contrast to Lac Su’s life of minimal support, the most supportive person in my life has been my best friend, Trang. I first met her in tenth grade and we have been bestfriends since. She is the same age as me but she is wiser than me and open-minded. She has helped me so much in my  life. She is like my other sister who I could turn to when I have no one beside me. She has helped me make right decisions every time I have to do something important in my life. When I first came to the United States from Vietnam, it was the hardest time for me and she was the one who encouraged me to not give up. She told me to be happy and be positive. Until now, she still always tells me to be positive and stay happy. She is very good at keeping secrets; therefore, I feel like I can tell her everything in my life and expect no one knows about it but her. She also accepts and supports me for being who I am. Sometimes, I get bored and sad, but later, talking to her makes me feel better. She always helps me feel stronger and confident about myself. She was also the only one who helped me choose my major. My parents always wanted me to be a businessman or an engineer, they still do now, but I have never seen myself as an engineer or a businessman. I always see myself as a nurse working in the hospital. So, Trang talked me into pursuing my dream. There are many great and wonderful ways she has supported me.