Reactions that produces a precipitate are all exothermic reactions.
错误
举一反三
内容
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All spontaneous reactions are exothermic. A: 正确 B: 错误
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All reactions of urea cycle take place in mitochondria.
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In chemical reactions, all electrons rearrange around the nuclei.
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All of us have feelings and ____ (emotion) reactions to certain things in life.
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All chemical reactions in the body are catalyzed by enzymes. A: 正确 B: 错误