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An Investigation of the Reaction between Calcium Carbonate And Dilute Hydrochloric acid. Experiment 1 Introduction: The purpose of this report is to produce carbon dioxide gas by reacting calcium carbonate and hydrochloric acid together. Calcium chloride solution is also formed: CaCO3 + 2HCL CaCl2 + H2O + CO2 There are four reasons that can change the rate of reaction, these are: Concentration: An increase in concentration means there are more particles. More particles mean that there will be more collisions. Surface area: When one of the reactants is solid; the reaction can only take place at the surface of the
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