Chemistry
Give balanced equations for reactions involving evolution of a gas on addition of dilute acid to :
(a) sodium sulphite
(b) calcium carbonate
Related Questions
Give a suitable example with equation to show the representation of a chemical reaction.
A chemical reaction is often accompanied by external indications or characteristics.
Give two examples where a chemical reaction is accompanied by a change in colour of the reactants & products on completion of the reaction.Give a balanced equation for conversion of:
(a) an ammonium salt to a basic gas
(b) a soluble lead salt to an insoluble lead salt – formed as a white precipitate.
Chemical reactions may proceed with evolution or absorption of heat. Give an example of each.