Which statement best represents the Law of Conservation of Mass?
Matter can disappear in a chemical reaction.
The total mass of substances stays the same a chemical reaction.
The mass of a substance increases during a physical change.
Mass conservation only applies to gases.
3 answers
The total mass of substances stays the same in a chemical reaction.
are you sure
Yes, I am sure. The Law of Conservation of Mass states that in a closed system, the total mass of substances before and after a chemical reaction remains constant. Matter is neither created nor destroyed in a chemical reaction, only rearranged.
1 answer