Write balanced equations for the reactions of aqueous hydrochloric acid on: [3 MARKS]
(a) magnesium foil
(b) zinc carbonate
(c) copper oxide.

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Solution

Each Part: 1 Mark

(a) $M g + 2 H C l (a q) Δ \to M g C l_{2} + H_{2} ↑$
(b) $Z n C O_{3} + 2 H C l (a q) \to Z n C l_{2} + H_{2} O + C O_{2} ↑$
(c) $C u O + 2 H C l (a q) \to C u C l_{2} + H_{2} O$

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Write balanced equations for the reactions of aqueous hydrochloric acid on: [3 MARKS] (a) magnesium foil (b) zinc carbonate (c) copper oxide.

Each Part: 1 Mark (a) Mg+2HCl(aq)Δ→MgCl2+H2↑ (b) ZnCO3+2HCl(aq)→ZnCl2+H2O+CO2↑ (c) CuO+2HCl(aq)→CuCl2+H2O

Write balanced equations for the reactions of aqueous hydrochloric acid on: [3 MARKS]
(a) magnesium foil
(b) zinc carbonate
(c) copper oxide.

Each Part: 1 Mark

(a) $M g + 2 H C l (a q) Δ \to M g C l_{2} + H_{2} ↑$
(b) $Z n C O_{3} + 2 H C l (a q) \to Z n C l_{2} + H_{2} O + C O_{2} ↑$
(c) $C u O + 2 H C l (a q) \to C u C l_{2} + H_{2} O$