Question

Write the following in the form of balanced chemical equations:-


(a) Calcium carbonate decomposes on heating to form calcium oxide and carbon – di –
oxide.


(b) When ammonium hydroxide is added to a solvent of iron (ll) Sulphate, a green ppt of
iron (ll) hydroxide and ammonium Sulphate are formed.


(c) When a nail of iron is added to a solution of copper Sulphate, iron (ll) Sulphate and
copper metal are formed.


(d) Zinc reacts with dil hydrochloric acid to form zinc chloride and hydrogen gas is liberated.

Answer 1

a. Ca(CO)3 = CaO + CO2
b. 2Al(OH)3+3FeSO4=3Fe(OH)2+AL2(SO4)3
c. Fe + CuSO4= FeSO4 + Cu
d. Zn + 2HCl = ZnCl2 + H2

Answer 2

Answer:

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