Answers 25-26 CHEMISTRY IN THE EARTH SYSTEM S1 HeatQuestion 4

4

QuizMultiple Choice

Heat

Question 4 • 25-26 CHEMISTRY IN THE EARTH SYSTEM S1

Which answer defines exothermic reaction?

Answer

A

a process in which energy is released as heat

B

a process in which energy is absorbed as heat

C

a process in which energy is stored and released

D

a process in which energy is not present in a system

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