(a)[1]
Name the apparatus labelled E.
(b(i))[2]
Describe how to test for carbon dioxide gas.
(b(ii))[1]
Explain why the mass gets smaller as time passes.
(b(iii))[1]
State one other measurement the student could take as time passes to find the rate of this reaction.
(c)[2]
Identify two variables that ought to be kept constant in this investigation.
(d(i))[1]
Describe how the graph can be used to determine which experiment has the greatest rate.
(d(ii))[1]
Write one letter in each box on the graph to show which experiments X, Y and Z they are.
(d(iii))[1]
Describe how the graph indicates that the reactions stop.
(d(iv))[1]
Explain why the reaction comes to an end.