Question
3. A(n) __ reaction happens when chemical bonds give off heat. A. Endothermic B. Exothermic C. Metallic D. Covalent
Answer
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Elsie
Professional · Tutor for 6 years
Answer
### B. Exothermic
Explanation
## Step 1: Identify the reaction type based on heat release### Chemical reactions that give off heat to the surroundings are known as exothermic reactions. This is a fundamental concept in chemistry where the system releases energy in the form of heat.#