Question

1. Assertion: In a balanced chemical equation, total mass of the
each element towards reactant side= total mass of the same
element towards product side.
Reason: Mass can neither be created nor destroyed during
a chemical change,​

Answer 1

Answer:

both assertion and reason are true but reason is not the correct explanation of assertion

Answer 2

Both assertion and reason are correct, Reason is the correct explanation of the assertion.

• In a balanced chemical equation, the number of atoms of an element is the same on both sides of the arrow.
• This means the number of atoms on the reactant side is equal to the number of atoms on the product side.
• Or we can say that the total mass of an element on the reactant side is equal to its total mass on the product side.
• This is so, because as per the law of conservation of mass, in a chemical reaction, the matter is neither created nor destroyed, so its total mass remains the same, before and after the reaction.