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If a chemical reaction causes the temperature of the reaction vessel to decrease, it is a(n) __________ reaction.a. endothermicb. exothermicc. spontaneousd. faste. slow

User MooCow
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An exothermic process releases heat, causing the temperature of the immediate surroundings to rise. An endothermic process absorbs heat and cools the surroundings.
User Zhichao
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