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CuO+H2SO4=CuSO4+H2O Cu(OH)2+H2SO4=CuSO4+2H2O
高錳酸鉀是純淨物. 不銹鋼不是純淨物,裡面含有碳. 加碘食鹽不是純淨物. 礦泉水不是純淨物,裡面還有礦物質. 希望能幫到您,我用的是手機,收不到追問,如果有疑問請發短消息給我,或者求助也可以哈~
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