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Collision theory - Collisions between reactant particles are needed for the reaction to take place in order to form a product.
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| Submitted: Thu Mar 25 2004
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PLANNING: Aim: To test how changing the concentration of Hydrochloric acid affects and changes the speed of the reaction with Marble chips. The reaction that will take place is CaCO3 (s) + 2HCl (Aq) CaCl2 (aq) + CO2 (g) + H2O (l) To measure the rate of reaction I will record the volume of carbon dioxide produced. Introduction and background knowledge: Collision theory - Collisions between reactant particles are needed for the reaction to take place in order to form a product. Some collisions are successful and give a product while others don't because particles don't have enough energy. Activation energy - This is the amount of energy needed for the reaction to be started. If there is enough energy then the reaction takes place and a product is formed, but if there isn't enough then no reaction takes place. The two possibilities for increasing the rate of reaction are: 1. The activation energy is...
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