Question

25. Write the balanced chemical equations for the following reactions
(a) Sodium carbonate on reaction with hydrochloric acid in equal
molar concentrations gives sodium chloride and sodium
hydrogencarbonate.
(b) Sodium hydrogencarbonate on reaction with hydrochloric acid
gives sodium chloride, water and liberates carbon dioxide.
(c) Copper sulphate on treatment with potassium iodide
precipitates cuprous iodide (Cu2
I2
), liberates iodine gas and
also forms potassium sulphate

Answer 1

Explanation:

NA2CO3 + Hcl = NaCl + NaHCO3

already balanced equation.

NaHCO3 + Hcl = NaCl + H2O + CO2

already balanced

CuSO4 + 2KI = CuI + I + K2SO4