Question

Write balanced equations to satisfy each statement.

(a) Acid + Active metal $\to$ Salt + Hydrogen

(b) Acid + Base $\to$ Salt + Water

(c) Acid + Carbonate $\to$ Salt + Water + Carbon dioxide

or bicarbonate

(d) Acid + Sulphite or bisulphite $\to$ Salt + Water + Sulphur dioxide

(e) Acid + Sulphide $\to$ Salt + Hydrogen Sulphide

Answer 1

(a) 2HCI(aq) + 2Na (s) → 2NaCl(s) + H₂(g) ↑

(b) HCl (aq) + NaOH(aq) → NaCI (aq) + H₂O

(c) Na₂CO₃(s) + 2HCI (aq) → 2NaCI (aq) + H₂O(l) + CO₂ (g) ↑

(d) NAHSO₃ + HCl → SO₂ + H₂O + NACl

(e) Na₂S(aq) + 2 HCl(aq) = H₂S(g) + 2 NaCl(aq)