Write the balanced chemical equations for the following reactions
(a) Sodium carbonate on reaction with hydrochloric acid in equal molar concentrations ves sodium chloride and sodium hydrogen carbonate.
Ans: Na2CO3 + HCl → NaCl + NaHCO3
(b) Sodium hydrogen-carbonate on reaction with hydrochloric acid gives sodium chloride, water and liberates carbon dioxide.
Ans:
NaHCO3 + HCl → NaCl + H2O + CO2
(c) Copper sulphate on treatment with potassium iodide precipitates cuprous iodide Cu2, I2 liberates iodine gas and also forms potassium sulphate.
Ans:
2CuSO4 + 4 KI → Cu2I2 + I2 + k2SO4
