Which of the following happens during a chemical change but does not happen during a physical change?

Question

The state of the substance changes.

Atoms of one or more substances rearrange into a new substance.

The mass of the substance change.

The appearance of a substance changes, but it is still the same substance.

Answer 1

The statement that happens during a chemical change but does not happen during a physical change is:

Atoms of one or more substances rearrange into a new substance.

During a chemical change, substances undergo a transformation where their molecular structure and arrangement of atoms change, resulting in the formation of new substances. This does not occur during a physical change, where the substance may change in state or appearance but retains its chemical identity.