This is one of the classic experiments. I think it is worth doing as it is tried and tested and gives you a good understanding both of what is meant by reaction rate and how increasing either the concentration or the temperature increases the rate of a chemical reaction.S2O32-(aq) + 2H+(aq) → H2O(l) + SO2 (g) + S(s)This reaction is followed by measuring the time it takes for the sulfur formed to obscure a cross which...