Write the balanced chemical equations of the following word equations.

(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 sulphate + chromium sulphate + water + oxygen

(p) Potassium dichromate + hydrochloric acid ⟶ potassium chloride + chromium chloride + water + chlorine

(q) Sulphur + nitric acid ⟶ sulphuric acid + nitrogen dioxide + water

(r) Sodium chloride + manganese dioxide + sulphuric acid ⟶ sodium hydrogen sulphate + manganese sulphate + water + chlorine

(a) 2NaOH + H₂SO₄ ⟶ Na₂SO₄ + 2H₂O

(b) 2KHCO₃ + H₂SO₄ ⟶ K₂SO₄ + 2CO₂ + 2H₂O

(c) Fe + H₂SO₄ ⟶ FeSO₄ + H₂

(d) Cl₂ + SO₂ + 2H₂O ⟶ H₂SO₄ + 2HCl

(e) 2AgNO₃ ⟶ 2Ag + 2NO₂ + O₂

(f) 3Cu + 8HNO₃ ⟶ 3Cu(NO₃)₂ + 2NO + 4H₂O

(g) 4NH₃ + 5O₂ ⟶ 4NO + 6H₂O

(h) BaCl₂ + H₂SO₄ ⟶ BaSO₄ + 2HCl

(i) 2ZnS + 3O₂ ⟶ 2ZnO + 2SO₂

(j) Al₄C₃ + 12H₂O ⟶ 4Al(OH)₃ + 3CH₄

(k) 4FeS₂ + 11O₂ ⟶ 2Fe₂O₃ + 8SO₂

(l) 2KMnO₄ + 16HCl ⟶ 2KCl + 2MnCl₂ + 5Cl₂ + 8H₂O

(m) Al₂(SO₄)₃ + 8NaOH ⟶ 3Na₂SO₄ + 2NaAlO₂ + 4H₂O

(n) 2Al + 2NaOH + 2H₂O ⟶ 2NaAlO₂ + 3H₂

(o) 2K₂Cr₂O₇ + 8H₂SO₄ ⟶ 2K₂SO₄ + 2Cr₂(SO₄)₃ + 8H₂O + 3O₂

(p) K₂Cr₂O₇ + 14HCl ⟶ 2KCl + 2CrCl₃ + 7H₂O + 3Cl₂

(q) S + 6HNO₃ ⟶ H₂SO₄ + 6NO₂ + 2H₂O

(r) 2NaCl + MnO₂ + 3H₂SO₄ ⟶ 2NaHSO₄ + MnSO₄ + 2H₂O + Cl₂