Question

According to the law of conservation of matter, which statement about chemical reactions is true?

A.
Atoms cannot be created or destroyed by chemical reactions.
B.
Every atom destroyed in a chemical reaction must be replaced.
C.
Energy is created as atoms are destroyed in chemical reactions.
D.
Atoms are created by some reactions and destroyed by others.

Answer 1

Atoms cannot be created or destroyed by chemical reactions.

Step-by-step explanation:

The law of conservation of matter states that atoms cannot be created or destroyed by chemical reactions, but can only change form. In a chemical reaction, the atoms stay the same but they are combined in new ways.

Answer 2

The law of conservation of matter basically states that matter can’t be created or destroyed, only changed in form, so you can rule out any option that mentions destroying or creating matter. That leaves only option A. Atoms cannot be created or destroyed by chemical reactions.