Complete the sentences by selecting the correct term:

Question

An _(1) reaction releases heat energy to its surroundings, causing a temperature increase, while an _(2) reaction absorbs heat energy from its surroundings.

A. Exothermic
B. Endothermic
C. Oxidation
D. Catalyst

Answer 1

An (1) exothermic reaction releases heat energy to its surroundings, causing a temperature increase, while an (2) endothermic reaction absorbs heat energy from its surroundings.

So the completed sentences are: An A. Exothermic reaction releases heat energy to its surroundings, causing a temperature increase, while an B. Endothermic reaction absorbs heat energy from its surroundings.