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Investigating Rates of Reaction - Planning Na2S203 + 2HCL 2NaCl + SO2 + H2O + S Reaction between sodium thiosulphate and hydrochloric acid The rate of a chemical reaction is the speed at which reactants are converted to products. Some reactions are very fast and some are very slow. In order for a chemical reaction to occur, particles of the reactants involved must collide with one another at the correct angle and with the correct amount of energy. The factors that affect the rate of a reaction are the surface area, concentration, temperature, and catalysts. In my experiment, I will be investigating the affect that concentration has on rates of reaction. I will use the above reaction and will use a range of concentrations of hydrochloric acid. Firstly I will do a preliminary experiment to gain experience in order to set up a more sophisticated experiment to gain my final results. Preliminary Work: Results: In 90...

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