Write the balanced chemical equations for the following reactions.
(a) Calcium hydroxide + Carbon dioxide -----> Calcium carbonate + Water
(b) Zinc + Silver nitrate ----> Zinc nitrate + Silver
(c) Aluminium + Copper chloride ------> Aluminium chloride + Copper
(d) Barium chloride + Potassium sulphate -----> Barium sulphate +Potassium chloride
