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An exothermic reaction is a chemical reaction that produces _____.

a. bubbles of gas

b. a new substance

c. a precipitate

d. heat energy

User Bortzmeyer
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2 Answers

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Answer: The answer is D, heat energy

Step-by-step explanation:

Gradpoint

User Joe Watkins
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6 votes
I pretty sure the answer is a
User Hou Lu
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