20-05-2018
Chemistry

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When determining whether a chemical reaction has taken place, you observe and look for several indicators. Which would be considered an indication that a chemical reaction or chemical change has taken place?

A) Solid melts.
B) Heat is given off.
C) Substance dissolves
D) Substance changes shape.

Respuesta :

claudettoterohil claudettoterohil

20-05-2018

the answer would be (B), Heat is given off.

Hope that helps!!!!

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ahorne101604 ahorne101604

09-03-2019

the answer is b i just got it right on usatestprep

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