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Aim factor (1): My aim for this experiment is to find out if the concentration effects the rate of reaction between CaCO3 & HCl. Prediction factor (1): My prediction is that if the concentration of the acid increases there will be an increase in the rate of reaction for example the highest concentration will have the fastest reaction time. I used a preliminary test to help in the prediction. I went and prepared marble chips and concentrated acid we tried the experiment, the results was clear that as in a few seconds it was almost finished. When we used very dilute acid it took so long for it to react and the amount of bubbles were much less than the first one. By using the results I can make the prediction of that, the rate of reaction is affected by concentration. Hypothesis factor (1): If the concentration of an acid increase than the rate of reaction will...

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