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Which of the following usually indicates a chemical reaction?

gas bubbles
color change
increase in temperature
decrease in temperature
release of light energy

2 Answers

3 votes

The Answer Is

Gas Bubbles, Color Change, & Release of Light Energy

User Mike Ohlsen
by
8.1k points
4 votes
It would be all of the above!
User David MacCrimmon
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8.2k points

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