27.某校化学课外小组为了鉴别碳酸钠和碳酸氢钠两种白色固体用不同的方法做了以下实验如图iiv所示 1只根据图iⅡ所示实验能够 Template




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tomski27.某校化学课外小组为了鉴别碳酸钠和碳酸氢钠两种白色固体用不同的方法做了以下实验如图iiv所示 1只根据图iⅡ所示实验能够 coloring