minecraftsam2018
26.02.2020 •
Biology
Which of the following indicates that an exothermic reaction has taken place?
A. a change in color
B. release of heat and/or light energy
C. cooling of the surroundings
D. absorption of heat by the reaction
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Ответ:
The answer is B. Hope it helps,
Ответ:
give an example of creative spying during the American Revolution.
Explanation: