????ìa &n bsp;??áD·′ó|2?ê?óú???ˉ?1?-·′ó|μ?ê?

A.Cu+4?HNO3￡¨?¨￡?Cu￡¨NO3￡?2+2?NO2?ü+2?H2O
B.Cu+2FeCl3¨TCuCl2+2FeCl2
C.￡¨NH4￡?2SO4+2NaOHNa2SO4+2NH3?ü+2H2O
D.2FeCl3+SO2+2H2O¨TH2SO4+2HCl+2FeCl2

????ìa  ??áD·′ó|2?ê?óú???ˉ?1?-·′ó|μ?ê?

A.Cu+4?HNO3￡¨?¨￡?Cu￡¨NO3￡?2+2?NO2?ü+2?H2O
B.Cu+2FeCl3¨TCuCl2+2FeCl2
C.￡¨NH4￡?2SO4+2NaOHNa2SO4+2NH3?ü+2H2O
D.2FeCl3+SO2+2H2O¨TH2SO4+2HCl+2FeCl2

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