Lesson: Chapter 8 — Heat changes in chemical reactions

Exothermic and endothermic reactions 2 of 5 Reset answers

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Question 2

What is an exothermic reaction?

A A reaction that absorbs heat B A reaction that needs light C A reaction that gives out heat D A reaction with no heat change

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A reaction that gives out heat. Magnesium reacting with hydrochloric acid is one: the temperature rises.

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