[题目]下列反应:①氢氧化钠与硫酸.②一氧化碳与氧气.③八水合氢氧化钡与氯化铵.④金属铜与硝酸银.其中:(1)属于放热反应的是 .(2)属于吸热反应的是 .(3)能设计成原电池的反应是 .(4)能设计成燃料电池的反应是 . 题目和参考答案——青夏教育精英家教网—

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【题目】下列反应：①氢氧化钠与硫酸，②一氧化碳与氧气，③八水合氢氧化钡与氯化铵，④金属铜与硝酸银。其中(用序号填空)：

(1)属于放热反应的是_______________________________。

(2)属于吸热反应的是_______________________________。

(3)能设计成原电池的反应是_________________________。

(4)能设计成燃料电池的反应是_______________________。

【答案】(1)①②④ (2)③ (3)②④ (4)②

【解析】酸碱中和反应、燃烧、活泼金属置换不活泼金属反应属放热反应，③属于典型的吸热反应。燃烧和置换反应一定是氧化还原反应，理论上均可设计成原电池，且CO燃烧可设计成燃料电池。

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