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Introduction I will be investigating the rate of reaction, which is the amount of substance taken for the reaction. Often the rate curve is a negative correlation. As we increase the temperature, the time taken for the cross to disappear will decrease. Other Information The most important factors that affect the rate of reaction are: Concentration of the acid Time taken for the cross to disappear Temperature Concentration of Sodium thiosulphate The reaction will not take place unless the particles will collide with each other. The minimum energy for reaction to work is called activation energy of the reaction. We need to know that energy is only released when new bonds are made and this happens when old bonds are broken. To start the reaction we will need to provide enough energy. Once the reaction has been started we don't need to put more energy because new bods will be made and old one will be broken....

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