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Chemistry Coursework - Investigating Factors Affecting the Rate of Reaction I intend to find out if a change in concentration will have an effect on the rate of reaction between acid and calcium carbonate. I am going to use hydrochloric acid, and the calcium carbonate will represent limestone, so therefore I am investigating the reaction behind acid rain. The effects of acid rain appear to be more severe in hotter countries and areas close to or down-wind from major sources of sulphur dioxide emitters. This is why I can change the concentration of hydrochloric acid, to give the impression of acid rain in an area closer to a sulphur dioxide emitter. Sulphuric acid is a slow reactant, therefore I am using hydrochloric acid to speed up the reaction. I will still be able to investigate the rate of reaction though, as changing the acid will not affect this. The other factor I could...

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