Write the balanced chemical equations for the following reactions:
(a) Calcium hydroxide `+` Carbon dioxide `to` Calcium carbonate `+` Water
(b) Zinc `+` Silver nitrate `to` Zinc nitrate `+` Silver
(c) Aluminium `+` Copper chloride `to` Aluminium chloride `+` Copper
(d) Barium chloride `+` Potasium sulphate `to` Barium sulphate `+` Potassium chloride
A. Calcium hydroxide + Carbon dioxide `rarr` Calcium carbonate + Water
B. Zinc + Silver nitrate `rarr` Zinc nitrate + Silver
C. Aluminium + Copper chloride `rarr` Aluminium chloride + Copper
D. Barium chloride + Potassium sulphate `rarr` Barium sulphate + Potassium chloride