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Chemistry Coursework: Electrolysis: Background Knowledge: Intro: In this experiment there will be two factors, which I will be testing for: 1) Changing time 2) Changing current Only the time of the electrodes, and the current are being investigated, therefore in order for this to be a fair test, the other factors must be kept constant. The temperature was monitored during the preliminary results, and the higher the current the higher the temperature change, therefore to keep it as constant as possible the current will be as low as possible, and monitored, so that it does not change during the experiment. The same CuS04 will be used throughout so the concentration is the same, and the same spacing between electrodes will be used. The size of the electrodes should be the same, but they will be reused, so the size will change from experiment to experiment. Planning Electrolysis is the decomposition of a substance by the passage of...

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