The Language of Chemistry — Question 7
Back to all questionsWrite 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