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Acid Attack The local Council are concerned about the effect of acid rain on the marble statues in the local park. Investigate a factor that affects the rate of reaction between marble (calcium carbonate) and dilute hydrochloric acid. There are three main factors that affect the rate of reaction. These are: Particle size Concentration Temperature With investigating any of these, there are slight problems which make them not as reliable as they could be. With particle size, it is extremely difficult to get control of the sizes, e.g. large, small, medium. I will not be investigating this as it is very unreliable. With concentration, even though it is easy to control by measured dilution, the room temperature affects the reaction rate, and is hard to control. If the experiment needs two lessons to be completed, the room temperature is unlikely to be the same, therefore affecting the results and making it unreliable. I will not be investigating...

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