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Investigating Reaction Rates Aim To investigate how temperature affects the reaction between Hydrochloric acid and calcium carbonate Prediction The rate of a reaction is affected by four factors: temperature, concentration, surface area and catalysts. A catalyst speeds up a reaction without changing it. A larger surface area speeds up a reaction because there is a larger space for the reaction to take place on. A higher concentration speeds up the rate of reaction because it makes collisions more likely. A higher temperature speeds up a reaction because it gives particles more energy so they can move around more and the chance of an effective collision is made more likely. In our investigation we are going to react hydrochloride with calcium carbonate at different temperatures to see how it affects the rate the carbon dioxide is made at. The word equation for the reaction is: Hydrochloric acid + Calcium carbonate › Calcium chloride + Carbon dioxide +...

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