According to the law of definite proportions, mass can neither be created nor destroyed in a chemical reaction.

Q.

According to Dalton's atomic theory, atoms can neither be created nor be destroyed in a chemical reaction.

Q. Assertion: In a chemical reaction, the sum of the masses of the reactants and products remain unchanged.

Reason: According to the law of conservation of mass, mass can neither be created nor destroyed.

Q. Mass can neither be created nor destroyed. This is in agreement with which law of chemical combination?

Q. “Matter can neither be created nor be destroyed in a chemical reaction”. But we can change it from one form to another. The law is:

Q. Assertion: Chemical reactions involve the rearrangement of atoms.
Reason: Atoms are indestructible and can neither be created nor be destroyed in a chemical reaction.