Question

5. The law that states that the mass of the product equals the mass of the reactants in a chemical reaction.​

Answer 1

Answer:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

Answer 2

Explanation:

Law of conservation of mass states that in a chemical reaction, the total mass of the product is equal to the total mass of the reactants.

For example

CaCO 3 →CaO+CO 2

The total mass of reactant CaCO3

=40+12+(16×3)=100

The mass of CaO=40+16=56

Mass of CO2

=12+(16×2)=44

The total mass of products CaO+CO2

=56+44=100.

Hence the above example illustrates that the total mass of reactants = total mass of products.