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Katie Haycock Chemistry Coursework 30/12/03 Investigating the effect of temperature on rate of reaction. Prediction: I predict that the higher the temperature, the faster the reaction will take place. I think this because when molecules get heated up they vibrate more frequently, causing more successful collisions. They will have higher energy levels because the particles collide more often with more energy so the rate of reaction would be higher. I will be using sodium thiosulphate, and hydrochloric acid as my two reactants. When they are put together sodium chloride, water, sulphur, and sulphur dioxide are produced. Therefore my formula is as follows: Na2S2O2(aq) +2HCl(aq) = 2NaCl(aq) +S(s)+SO2(g) I will know when my reaction has taken place because I will place my glass conical flask on a black cross, and when the solution has gone cloudy, and my cross is no longer visible the reaction has occurred. Plan: Variables: I have decided to use temperature as my independent variable. This...

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