Question

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?
Solid melts.
Heat is given off.
Substance dissolves
Substance changes shape.

Answer 1

Answer:

Heat is given off

Explanation:

Exothermic reactions are chemical reactions. Therefore since heat was given off it was an exothermic reaction, otherwise known as a chemical reaction.

- Hope this helps! Please let me know if you need further explanation.

Answer 2

Answer: The answer is B. Heat is given off.