Chemistry, 06.02.2021 01:00 alonnachambon

A student mixed two chemicals to allow them to react. The temperature before the reaction was 25°C. The temperature after the reaction was 18"
C. Which of the following is true?
A: An exothermic reaction occured
B: An endothermic reaction occured
C: The substances exploded
D: The substances did not change

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