Question

if you mix two substances in a closed container and the reaction produces a new substance, what should happen to the total mass? it depends on the color of the substances it increases it stays the same it decreases

Explanation:

According to the law of conservation of mass, in a closed - system chemical reaction, the total mass of the reactants equals the total mass of the products. The color of substances is not related to mass changes in a chemical reaction.

Answer:

It stays the same