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true or false. A change of color is a sign that a chemical reaction is taking place.
A change of color is a sign that a chemical reaction is taking place. TRUE.
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Asked 4/26/2013 11:02:09 AM
Updated 2/21/2016 8:28:10 PM
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Edited by Andrew. [2/21/2016 8:28:08 PM], Unflagged by Andrew. [2/21/2016 8:28:10 PM]
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A change of color is a sign that a chemical reaction is taking place. TRUE.

Added 2/21/2016 6:08:08 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [2/21/2016 8:28:00 PM]
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What is the minimum amount of energy needed for a reaction to take place? User: What is the minimum amount of energy needed for a reaction to take place? a. 100 joules c. Energy of reaction b. Activation energy d. 50 calories
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Updated 9/12/2014 7:04:31 PM
1 Answer/Comment
ACTIVATION ENERGY is the minimum amount of energy needed for a reaction to take place.
Added 9/12/2014 7:04:31 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [9/13/2014 12:21:32 AM]
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