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09-10-2020
Chemistry

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A chemical reaction takes place to allow instant cold packs to absorb energy. This is an example of a(n) __________.
A. physical change
B. exothermic reaction
C. endothermic reaction
D. precipitate

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09-10-2020

Answer:

c. Endothermic

Explanation:

endothermic reactions absorb heat, exothermic reactions release heat.

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