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Chemistry Coursework Disappearing Cross Experiment Plan I must produce a piece of coursework investigating the rates of reaction. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a chemical reaction. There are five different factors, which affect the rate of a reaction (1) Temperature (2) Concentration of a solution (3) Pressure of gases (4) Surface area of solids (5) And catalysts. I have chosen to investigate the effect temperature has on a reaction. If I'd of had enough time, I would of done an experiment for concentration of Hydrochloric acid to see what difference the rate of reaction would be here. I wouldn't do pressure of gases, as most are 'invisible' to the human eye. I wouldn't do surface area of a solid, as the two substances we are looking at are liquids. I wouldn't use a catalyst in the experiment, because firstly I wouldn't know which...

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