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Investigating a single factor that affects the rate of reaction between marble chips and hydrochloric acid Aim - To investigate a single factor that affects the rate of reaction between marble chips and hydrochloric acid. Statement - Hypothesis and Background Information - I predict that the higher the concentration of the hydrochloric acid, the faster the rate of reaction will be. I predict this because, according to the collision theory the more particles that are present in a reaction the more succesful collisions are likely to occur. This means that the more succesful collisions that occur, the faster the rate of the reaction will be. Therefore when the concentration of hydrochloric acid is higher there will be more particles present. If there are more particles present, the more succesful collisions can occur and the faster the rate of reaction will be. The collision theory is that when a chemical reaction occurs the...

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