摘要:21.2NH3 NH4+ + NH2- H2O,H2O 22 Fe2O3 (2) ①③④ (3) Al(CH3)3 + 3H2O = 3CH4 ↑+ Al(OH)3 ↓ 2Al + 2OH- + 2H2O = 2AlO2- + 3H2 ↑

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