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I am going to look at how the temperature affects the rate of reaction between calcium carbonate and hydrochloric acid. For a chemical reaction to occur first two particles have to collide this is called the collision theory. Not only do they have to collide but they have to collide with enough energy so that bonds can break, this is called the activation energy. The activation energy can be thought of as a barrier to the reaction, only the collisions equal to or greater than it can a reaction happen. When you heat a substance the particles move faster and with more energy so collide more frequently. This means that more particles will be equal to or greater than the activation energy barrier and the reaction will happen more quickly. To find the effect of changing the temperature to the rate of reaction between calcium carbonate and hydrochloric acid I will need...

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