Question

Why do we need an isolated system for the law of conservation of mass to be true?

Answer 1

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

Step-by-step explanation:

well an isolated system is one which is impervious to the floor of both matter and energy so to prove the conservation of mass we have to find a way to keep a constant mass in the confined space