Question

define the law of conservation of mass

Answer 1

It states that matter can neither be created nor destroyed. Matter can only change it's form.

Answer 2

☺️Law of conservation of mass:

☺️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.