Answer: The correct answer is: " endothermic . "
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Note: Heat flows into [heat may be absorbed within] an "endothermic" reaction or system
To the contrary, heat flows out [heat may exit from or may be released from] an "exothermic" reaction or process.
Hint: Think of the "prefixes" of: "endothermic" and "exothermic" :
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1) endo- = "within" (as in "endothermic" —heat tends to be absorbed/"within"/"released within"/released within"/into" ;
2) exo- = " outwards"/"exit" (as in "exothermic") —heat tends to '"exit"/leave/escape from/"be released out of/form".
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Hope this is helpful to you!
Best wishes to you in your academic pursuits
—and within the "Brainly" community"!
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