Q.7: Write 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
Answer:-
(a) Ca(OH)2 + CO2 —> CaCO3 + H2O
(b) Zn + 2AgNO3 —> Zn(NO3)2 + 2Ag
(c) 2Al + 3CuCl2 —> 2AlCl3 + 3Cu
(d) BaCl2 + K2SO4 —> BaSO4 + 2KCl
