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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
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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

User Lorek
by
5.6k points

2 Answers

4 votes

Answer:B

Step-by-step explanation:

User Carlos Cordoba
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6.8k points
1 vote

Answer:

B: Presence of ashes

Step-by-step explanation:

Burning molecules turns them into other molecules

User Mohammed Hassan
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5.2k points
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