Liquid 1 reacts with Liquid 2, producing a solid and a gas. Using this scenario, which supports the law of conservation of mass?

The law of conservation of mass says that the total mass of the reactants equals the total mass of the products. Here, Liquid 1 and Liquid 2 are the reactants, while the solid and gas are the products. So the masses must satisfy: mass of Liquid 1 + mass of Liquid 2 = mass of solid + mass of gas. This is choice D.

AI-written and checked against the verified answer.