滴管滴加液体时不能将试管伸入容器里 对还是错?
滴管滴加液体时不能将试管伸入容器里 对还是错?
化学人气：611 ℃时间：2019-08-22 09:47:06
优质解答
对,但是在制取氢氧化亚铁的实验中,试管必须伸到试管中,而且是液面下,防止和空气接触.这是特例
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