Question

6 gram of potassium chlorate when heated produce 2g of oxygen and their side (KCl) left behind weight 4g .Show that these results illustrate the law of conservation of mass.

Answer 1

2KClO 3

→2KCl+3O 2

Mass of the reactant = total mass of the products (2.96+1.92=4.88 g)

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. Therefore it is the law of conservation of mass.