(a)[2]
Draw a diagram of the apparatus the student could use to carry out this investigation.
(b(i))[2]
Which sample, large, medium or small pieces, had the quickest initial rate of reaction? Use the graph to explain your answer.
(b(ii))[2]
The experiment was done again with powdered calcium carbonate of the same mass. Draw a line on the grid above to illustrate how the volume of carbon dioxide changes with time in this experiment.
(b(iii))[1]
At what time did the reaction just finish when small pieces of calcium carbonate were used?
(c(i))[1]
Give one application of calcium oxide.
(c(ii))[2]
What kind of oxide is calcium oxide? Explain your answer.