A) suggest two reasons why not all points lie on the line of best fit.
1.
2.

b) From graph, deduce the speed of reaction when the concentration of sodium thiosulfate is 0.0075 mol/ dm³. Show clearly on the graph how you worked out your answer

c) Explain why the speed of reaction increases when the concentration of sodium thiosulfate is increased.

e) sketch on the grid the line you would expect if the experiments were repeated at a higher temprature.