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问题:

(2)用初中的化学知识分析,固体氢氧化钠的作用是_____________。

(2)用初中的化学知识分析,固体氢氧化钠的作用是_____________。


  参考答案

正确答案:
氢氧化钠吸水放热,加速浓氨水的挥发 (只要答到“氢氧化钠吸水放热”就可给分)

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