Write the balanced chemical equation for each of the following reactions :
(i) Sodium thiosulphate is reacted with dilute hydrochloric acid
(ii) Calcium bicarbonate reacts with dilute hydrochloric acid
(iii) Dilute sulphuric acid is poured over sodium sulphite
(iv) Lead nitrate solution is added to sodium chloride solution
(v) Zinc is heated with sodium hydroxide solution.
