Question

Translate the following statements into chemical equations and balance them. (a) Hydrogen gas combines with nitrogen to form ammonia. (b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide. (c) Barium chloride reacts with aluminium sulphate to give Aluminium chloride and a precipitate of barium sulphate. (d) Potassium metal reacts with water to give potassium hydroxide and Hydrogen gas.


Balance the following chemical equations.

(a) HNO3 + Ca(OH)2 → Ca(NO3)2 + H2O

(b) NaOH + H2SO4 → Na2SO4 + H2O

(c) NaCl + AgNO3 → AgCl + NaNO3

(d) BaCl2 + H2SO4 → BaSO4 + HCl​

Answer 1

Answer:

(a) Unbalanced: H2 + N2 → NH3

Balanced: 3H2 + N2 → 2NH3

(b) Unbalanced: H2S + O2 → H2O + SO2

Balanced: 2H2S + 3O2 → 2H2O + 2SO2

(c) Unbalanced:

BaCl2 + Al2(SO4)3 → AlCl3 + BaSO4

Balanced: 3BaCl2 + Al2(SO4)3 → 2AlCl3 + 3BaSO4

(d) Unbalanced: K + H2O → KOH + H2

Balanced: 2K + 2H2O → 2KOH + H2

(a) 2HNO3 + Ca(OH)2 → Ca(NO3)2 + 2H2O

(b) 2NaOH + H2SO4 → Na2SO4 + 2H2O

(c) NaCl + AgNO3 → AgCl + NaNO3

(d) BaCl2 + H2SO4 → BaSO4 + 2HCl

hope it helps you