metchan209 metchan209

17-05-2022
Chemistry

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A student mixed two chemicals to allow them to
react. The temperature before the reaction was 25
°C. The temperature after the reaction was 50° C.
Which of the following is true?
A. there was no change in heat energy
B. it is an exothermic reaction

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17-05-2022

Answer:

B .it is an exothermic reaction

Explanation:

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