如图为用过量的木炭还原氧化铜的实验装置.请回答下列有关问题1实验过程中首先观察到的又能证明炭与cuo�生化学变化的现象是 .2a处 Template




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tomski如图为用过量的木炭还原氧化铜的实验装置.请回答下列有关问题1实验过程中首先观察到的又能证明炭与cuo�生化学变化的现象是 .2a处 coloring