Kinetics 6.1 Rates of reaction 6.2 Collision theory 6 16.1 Rate Expression (AHL) 16.2 Reaction mechanism (AHL) 16.3 Activation energy (AHL) 6.1 Rates of reaction 6.1.1 Define the term rate of reaction. 6.1.2 Describe suitable experimental procedures for measuring rates of reactions. 6.1.3 Analyse data from rate experiments. © IBO 2007 Figure 601 An explosion is a quick reaction D ifferent chemical reactions occur at different rates (i.e. speeds). Some
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The Birth of Venus Alexandra Smith In Sandros Boticelli’s‚ The Birth of Venus‚ there were several different types of lines noticeable in the painting. There are actual lines to illustrate simple birds‚ and curved lines showing the edges of the shell. A lot of the lines were implied by the different colors next to each other. The edge of the trees and the leaves are shown by dark browns and greens against the blue sky. The hard lines of the edge‚ and soft lines in the folds of the fabric held
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a test need to have validity? Reliability? Can you have one without the other? Test needs validity to make sure of clear directions when reading vocabulary and items that are appropriate for the objectives. Reliability to accurately determine the number of items used the length of the test‚ and the rating. No‚ you can not have one without the other because together they balance each other. 5. Why is the description of a test’s purpose important? How does test purpose affect test design? It
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national unemployment rate fell to 4.4 percent in October the lowest level of unemployment since May 2001. This is a sign of unexpected strength in the job market. [The unemployment rate is based on a survey of households‚ rather than the survey of employers used to calculate the payroll number. Unemployment does not include full-time students‚ the retired‚ children‚ or those not actively looking for a paying job.] The unemployment level is defined as the labor force minus the number of people currently
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Birth Order Birth order plays different roles in each family. Also birth orders give children different personalities to socialize with others. The eldest children usually tend to be very good leaders‚ and middle children are tend to be the good negotiators. The firstborn children can easily get all parents’ attention in their early life; in contrast‚ later born children get less attention from parents. The eldest children are families hope in that time‚ because all family only have one child
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entry of low cost carriers. other factors include several macro-level socio economic troubles‚ SARS crisis‚ 9/11 attacks‚ bird flu‚ Asian Tsunami and other terrorism concerns‚ due to this there has been a big impact on airline profit. As market condition is continuously changing‚ it is difficult to predict the future of the airline industry. the overall industry as we see it is in a weak position‚ even though the demand is rising. companies now are providing additional services at low cost and decreasing
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Population and Sampling MTH/231 Fahad M. Gohar Statistical data dates back to as early as Ancient Greek time‚ where it was introduced by John Graunt‚ William Petty and Pascal in the 16th century. It was then re-introduced by Gottfriend Achenwall in the 17th century. This was a very exciting time for scientists‚ astronomers and physicists alike as it raised the confidence and knowing that the laws of nature were not of divine intervention. As the years went on‚ new mathematical
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Trends: Ageing Population The first current social trend is that of an ageing population. This means that as time has gone on‚ more people are progressing into 64+ years old than people being born. In fact‚ “in 2008 there were 3.2 people of working age for every person of pensionable age. This ratio is projected to fall to 2.8 by 2033.” (http://www.parliament.uk/business/publications/research/key-issues-for-the-new-parliament/value-for-money-in-public-services/the-ageing-population/) This has been
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India is the second most densely populated country in the world after China. Our population is continuing to grow at a very fast rate. Progress made in the field of medical science has contributed to the decline in the death rate. But we have not been able to check the birth rate. As a result there is tremendous increase in population. This kind of growth has a direct effect or. The development of our country it prevents the benefits of economic development from reaching all the people because development
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inferior. Times have now changed‚ but there are remnants of this subject everywhere‚ even in film. The movie Birth of a Nation is considered one of the greatest films of all time‚ even with these themes. AMC’s Filmsite even has it listed within the 100 Greatest Films of All Time. Another movie with the some of the same themes is Blazing Saddles. Blazing Saddles does not have the same stature as Birth of a Nation‚ but it does deserve to be higher in the canon. I do believe that Blazing Saddles does not
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