Asked by jena

You heat two substances, A and B. Both substances change color. When cooled, substance B returns to its original color, but substance A does not.

What most likely happened in this situation?

Responses

A physical change occurred in substance A, and a chemical change occurred in substance B.

A physical change occurred in substance A, and a chemical change occurred in substance B.

A chemical change occurred in both substances.

A chemical change occurred in both substances.

A physical change occurred in both substances.

A physical change occurred in both substances.

A chemical change occurred in substance A, and a physical change occurred in substance B.

A chemical change occurred in substance A, and a physical change occurred in substance B.

All Answers 1

Answered by GPT-5 mini AI
A chemical change occurred in substance A, and a physical change occurred in substance B.

Reason: B's color change was reversible on cooling, which suggests a physical change (no new substance formed). A's color change was permanent, indicating a chemical change (a new substance or chemical alteration occurred).