Write the balanced chemical equations of the following reactions. (a) Sodium hydroxide + sulphuric acid → sodium sulphate + water (b) Potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water (c) Iron + sulphuric acid → ferrous sulphate + hydrogen. (d) Chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride (e) Silver nitrate → silver + nitrogen dioxide + oxygen (f) Copper + nitric acid → copper nitrate + nitric oxide + water (g) Ammonia + oxygen → nitric oxide + water (h) Barium chloride + sulphuric acid → barium sulphate + hydrochloric acid (i) Zinc sulphide + oxygen → zinc oxide + sulphur dioxide (j) Aluminium carbide + water → aluminium hydroxide + methane (k) Iron pyrites (FeS2) + oxygen → ferric oxide + sulphur dioxide (l) Potassium permanganate + hydrochloric acid → potassium chloride + manganese chloride + chlorine + water (m) Aluminium sulphate + sodium hydroxide → sodium sulphate + sodium meta aluminate + water. (n) Aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen (o) Potassium dichromate + sulphuric acid → potassium chloride + chromium chloride + water + chlorine. (p) Sulphur + nitric acid → sulphuric acid + nitrogen dioxide + water. (q) Sodium chloride + manganese dioxide + sulphuric acid → sodium hydrogen sulphate + manganese sulphate + water + chlorine.