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Which of these indicate that a chemical reaction has occurred? A.) Formation of a gas. B.) Boiling of a substance. C.) Melting of a substance . D.) Freezing of a substance.
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2 votes
Which of these indicate that a chemical reaction has occurred?

A.) Formation of a gas.
B.) Boiling of a substance.
C.) Melting of a substance .
D.) Freezing of a substance.

User Artemio Ramirez
by
6.0k points

2 Answers

6 votes

I think b.) cause its evaporating


;)

User Ton Van Den Heuvel
by
6.0k points
7 votes
Your answer is C - Melting of a substance 
User Mahatma Aladdin
by
6.8k points
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