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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Which of the following is NOT evidence that a chemical reaction has occurred?
A) color change when chemicals are contacted with each other
B) solid formation when chemicals are contacted with each other
C) gas formation when chemicals are contacted with each other
D) emission of light when chemicals are contact with each other
E) All of the above are evidence of a chemical reaction.

Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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mel!811mel!811
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