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Investigate one of the factors affecting the rate of reaction between a metal and an acid.
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PLANNING The Problem: To investigate one of the factors affecting the rate of reaction between a metal and an acid. Background Knowledge: The balanced equation for the reaction that takes place between magnesium and hydrochloric acid is: Mg + 2HCl ==> MgCl + Cl From this equation, we can already see that it involves and acid and a metal, therefore: Acid + metal ==> salt + hydrogen The ionisation equation of the hydrochloric acid is: HCl(aq) ==> H + Cl This experiment will demonstrate the breaking of bonds. Bonds break in order to allow certain atoms to re-arrange before the new bonds are formed. When magnesium reacts with the hydrochloric acid, a particle of this acid must collide with a particle of the magnesium with adequate energy in order to break the bonds between the magnesium and the hydrochloric acid. This is known as the Collision Theory. The collisions between the particles must collide more often and with more sufficient energy...
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