During a chemical reaction, the total amount of matter stays the same. During a chemical reaction, matter is destroyed. During a chemical reaction, one or more new substances are formed. During a chemical reaction, the total number of atoms increases.
I gave my students this multiple choice question: How does a balanced chemical equation satisfy the Law of Conservation of Mass?

Only one answer is correct among these 4 choices:
- During a chemical reaction, the total amount of matter stays the same.
- During a chemical reaction, matter is destroyed.
- During a chemical reaction, one or more new substances are formed.
- During a chemical reaction, the total number of atoms increases.

Could you tell me which one is correct?

During a chemical reaction, the total amount of matter stays the same.