Question

how to find out the changes in mass before and after a chemical reaction

Answer 1

Explanation:

the chemical reaction takes place in a system. it's obvious that in a chemical reaction there'll be a change in mass . by *the law of conservation of mass* you can actually calculate the Change in mass before and after a chemical reaction.

*law of conservation of mass:*

mass of reactant = mass of product

(total mass of the entire reaction is conserved and hence there's no loss)

hope it helps:)

Answer 2

Answer:

Mass cannot be created or destroyed in a chemical reaction. The law of conservation of mass states that the total mass of substances taking part in a chemical reaction is conserved during the reaction.

Explanation:

hope it's helpful for you