itzmoomoo1 itzmoomoo1

10-11-2020
Chemistry

contestada

What is a sign that a chemical change has happened?
O A. A substance dissolves.
O B. Sound and heat are produced.
OC. A substance changes temperature.
O D. A change of state happens.

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maggie1008 maggie1008

10-11-2020

I believe D is the answer.

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