(a)[1]
Name the salt produced when calcium carbonate reacts with hydrochloric acid.
(b(i))[1]
State why the mass of the reaction mixture decreases.
(b(ii))[1]
Calculate the decrease in mass in the first 40 seconds of the experiment.
(b(iii))[2]
Draw a line on the grid for the run using hydrochloric acid at a concentration of $2\,\text{mol dm}^{-3}$.
(b(iv))[1]
Calculate the mass decrease when $0.50\,\text{g}$ of calcium carbonate is used.
(b(v))[1]
Complete the table by entering the sizes of the calcium carbonate pieces in the first column.