16. Write the following in the form of balanced chemical equations:-
(a) Calcium carbonate decomposes on heating to form calcium oxide and carbon dioxide.
(5) When ammonium hydroxide is added to a solvent of iron (II) Sulphate, a green ppt of iron (11)
hydroxide and ammonium Sulphate are formed.
(c) When a nail of iron is added to a solution of copper Sulphate, iron (II) Sulphate and copper metal
are formed.
(d) Zinc reacts with dil hydrochloric acid to form zinc chloride and hydrogen gas is liberated.
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