实验室有一瓶久置的氢氧化钠固体某同学想了解其变质情况设计了实验实验过程如下实验一取�量样品于试管中滴加适量稀盐酸观察到有气泡产生 Template




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tomski实验室有一瓶久置的氢氧化钠固体某同学想了解其变质情况设计了实验实验过程如下实验一取�量样品于试管中滴加适量稀盐酸观察到有气泡产生 coloring