peilveronica995 peilveronica995

01-11-2021
Chemistry

contestada

What is evidence that a chemical change has happened? A. A substance changes into a new kind of substance. B. You observe a color change. O C. The amount of matter increases. D. The temperature of a substance increases or decreases.

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01-11-2021

Answer:

B.change in colour...

I guess that's the answer

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