A.C+H2OCO+H2 | B.2H2O2H2↑+O2↑ |
C.Cl2+H2O="===HCl+HClO" | D.2Na+2H2O====2NaOH+H2↑ |
A.氧化性:B2>C2>A3+ | B.还原性:A2+>C->B- |
C.氧化性:C2>A3+>B2 | D.还原性:C->A2+>B- |
A.2∶3 | B.3∶2 | C.3∶8 | D.8∶3 |
A.氧化性:Zn2+>Cu2+>Fe3+>Ag+ | B.Fe3+的氧化性大于Cu2+ |
C.溶液中Cu2+与Fe2+物质的量比为1∶2 | D.1 mol Fe可还原2 mol Fe3+ |
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