EXPLAIN THE LAW OF CONSERVATION OF MASS WITH AN EXAMPLE ?
For example: When 100g of mercuric oxide is heated, 92.6 g of mercury and 7.4 g of oxygen are obtained as products.
i.e. HgO→ Hg + O2
In this case mass of reactant =100g
Mass of products = Mass of Hg + Mass of O2 = 92.6 + 7.4 = 100g
Thus, we obtain Mass of product = Mass of reactants
This verifies the law of conservation of mass.