G.C.S.E Chemical Reaction - Rates of Reaction between Sodium Thiosulphate Solution and Hydrochloric Acid

Hypothesis
The rate of a reaction is the speed at which a reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate. Some reactions take hundreds, maybe even thousands of years while other can happen in less than one second. The rate of reaction depends on the type of molecules that are combining. There are two possible ways of measuring a rate:
measure how quickly one of the products are made,
measure how quickly one of the reactants disappear.
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