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金属钠和水反应时,在水面上游动的金属球是不是纯钠呢?

Floor 1 硫酸铜溶液 7/14/12 13:57
rt
Floor 2 硫酸铜溶液 7/14/12 13:58
而且游动时的声音很刺耳,还发烟!
Floor 3 名字不能给用 7/17/12 15:36
留名

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