7(a)
Write balanced chemical equations, for the preparation of the given salts.
(i) to (iii) by using the methods A to C respectively:
A: Neutralization B: Precipitation C: Titration
(i) Copper sulphate
(ii) Zinc carbonate
(iii) Ammonium sulphate
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Preparation of copper sulphate by neutralization
CuO + H2SO4 ⟶ CuSO4 + H2OPreparation of zinc carbonate by precipitation
Zn(NO3)2 + Na2CO3 ⟶ 2NaNO3 + ZnCO3Preparation of ammonium sulphate by titration
2NH4OH + H2SO4 ⟶ (NH4)2SO4 + 2H2O