asked 157k views
1 vote
Which observation is the best indication that a chemical reaction has occurred?

A. Change in temperature

B. Presence of ashes

C. Change from liquid to gas

D. Absence of fizzing

asked
User Lorek
by
7.8k points

2 Answers

4 votes

Answer:B

Step-by-step explanation:

answered
User Carlos Cordoba
by
8.4k points
1 vote

Answer:

B: Presence of ashes

Step-by-step explanation:

Burning molecules turns them into other molecules

answered
User Mohammed Hassan
by
7.3k points
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