<u>Answer: </u>The correct answer is Option A.
<u>Explanation:</u>
Law of Conservation of Mass states that mass can neither be formed nor be destroyed but can be transformed from one form to another. Every balanced equation follows this law.
This law basically means that the total mass on the reactant side is always equal to the total mass on the product side.
<u>For Example:</u> The equation for the formation of water from hydrogen and oxygen gas, the reaction follows:
Mass of hydrogen = 1 g/mol
Mass of oxygen = 18 g/mol
Total mass on the reactant side =
Total mass on the product side =
As, total mass on the reactant side is equal to the total mass on the product side. Hence, it is following Law of conservation of mass.
Therefore, the correct answer is Option A.