(a(i))[1]
Fill in Table 8.1 by adding the concentrations in the first column.
(a(ii))[1]
Describe how the time taken for the reaction to finish changes if the reaction is carried out at a lower temperature. Keep every other condition the same.
(a(iii))[1]
Describe how the time taken for the reaction to finish changes if powdered calcium carbonate is used in place of small pieces of calcium carbonate. Keep every other condition the same.
(b(i))[2]
State the products formed at the positive and negative electrodes.
(b(ii))[1]
From the list, choose the substance used as an inert electrode. Circle your answer: graphite / iodine / magnesium / phosphorus.
(c)[2]
Describe the movement and spacing of the particles in carbon dioxide gas.