摘要:22. (1)2Na2O2+2H2O=4NaOH+O2↑ 0.2NA (2)Cl2+2OH-= Cl- + ClO- +H2O (3) C.浓H2SO4 (4)2NH4Cl+Ca(OH)2CaCl2 +2H2O+2NH3↑ 3 + 3 ClO-+4OH-=2FeO42-+3 Cl-+5H2O

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