Question

Translate the following statements into chemical equations and balance them: (i) Lead nitrate reacts with sulphuric acid to form a precipitate of lead sulphate and nitric acid. (ii) Magnesium burns in the presence of nitrogen to form magnesium nitride. (iii) Aluminium metal strip is added in hydrochloric acid to produce aluminium chloride and hydrogen gas.

September 11, 2024

Answer

(i) Pb(NO₃)₂(aq) + H₂SO₄(aq) → PbSO₄(s) + 2HNO₃(aq)

(ii) 3 Mg(s) + N2g $\overset{∆}{\rightarrow}$ MgN2(s)

(iii) 2AL(s) + 6HCL(aq) → 2ALCL₃(aq) + 3H₂(g)

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