Question

How will you prove experimentally the law of conservation of mass?

Answer 1

Hello,

The law of conservation of mass states that during in a physical or chemical change, the mass of products remains equal to the total of reactants. 

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.

Answer 2

law of conservation of mass states that diring in a physical and a chemical change the mass of products remain equal to the total of the reactants. thus we obtain mass of product=mass of reactants.
example=when 100g of mercuric oxide is heated 92.6 and 7.2 of oxygen are obtained as products
in this case mass of reactants =100g