Question

Which of the following is true about the principle of the conservation of mass?

A. The mass of the products is never equal to the mass of the reactants.
B. The mass of the products is less than the mass of the reactants.
C. The mass of the products is equal to the mass of the reactants.
D. The mass of the products is greater than the mass of the reactants.

Answer 1

The law of conservation of mass states that the mass of the reactants is equal to the mass of the products in a chemical reaction.

Step-by-step explanation:

The law of conservation of mass states that during a chemical reaction, the mass of the reactants is equal to the mass of the products. This means that mass is neither created nor destroyed in a chemical reaction, but is always conserved. For example, when charcoal is burned in oxygen, the mass of the charcoal and oxygen must be equal to the mass of the carbon dioxide, water vapor, and ash produced.