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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
The method of representing a chemical reaction with the help of symbols and formulae of substances involved is called a chemical equation.
Example: Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas.
This equation is written as:$Zn\ ( s) \ +\ H_{2} SO_{4} \ ( aq) \ \rightarrow \ ZnSO_{4} \ ( aq) \ +\ H_{2} \ ( g) +Heat$
(a) Calcium hydroxide + Carbon dioxide → Calcium carbonate + Water - Ca (OH)2 + CO2 → CaCO3 + H2O
(b) Zinc + Silver nitrate → Zinc nitrate + Silver - Zn + 2AgNO3 → Zn(NO3)2 + 2 Ag
(c) Aluminium + Copper chloride → Aluminium chloride + Copper - 2Al + 3 CuCl2 → 2AlCl3 + 3 Cu
(d) Barium chloride + Potassium sulphate → Barium sulphate + Potassium chloride - BaCl2 + K2SO4 → BaSO4 + 2KCl
Updated on: 14-Mar-2023
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