Question

Barium chloride reacts with sodium sulphate to form Barium sulphate and sodium chloride. Then, according to the law of conservation of mass:

• A. the total mass of reactants, barium chloride, and sodium sulphate taken is greater than the total mass of products, barium sulphate, sodium chloride formed
• B. the total mass of reactants, barium chloride, and sodium sulphate is less than the total mass of products, barium sulphate, and sodium chloride
• C. the total mass of the reactants is equal to the total mass of products
• D. none of the above

Answer 1

Answer: (C)

the total mass of the reactants is equal to the total mass of products

The law of conservation of mass states that mass can neither be created nor be destroyed, it can only change from one form to the other.

So, according to the law, the amount of reactants consumed should be equal to the amount of the products formed.

Hence option C is correct.