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金属单质还原性的化学方程式 金属单质(Na，Mg，Al，Fe)的还原性 2Na + H2 === 2NaH 金属单质还原性的化学方程式：4Na + O2 === 2Na2O 2Na2O + O2 === 2Na2O2 2Na + O2 === Na2O2 2Na + S === Na2S(爆炸) 2Na + 2H2O === 2NaOH + H2 2Na + 2NH3 === 2NaNH2 + H2 4Na + TiCl4(熔融) === 4NaCl + Ti Mg + Cl2 === MgCl2 Mg + Br2 === MgBr2 2Mg + O2 === 2MgO Mg + S === MgS Mg + 2H2O === Mg(OH)2 + H2 2Mg + TiCl4(熔融) === Ti + 2MgCl2 Mg + 2RbCl === MgCl2 + 2Rb 2Mg + CO2 === 2MgO + C 2Mg + SiO2 === 2MgO + Si Mg + H2S === MgS + H2 Mg + H2SO4 === MgSO4 + H2 2Al + 3Cl2 === 2AlCl3 4Al + 3O2 === 2Al2O3(钝化)www.xuexidiyi.com 4Al(Hg) + 3O2 + 2xH2O === 2(Al2O3.xH2O) + 4Hg 4Al + 3MnO2 === 2Al2O3 + 3Mn 2Al + Cr2O3 === Al2O3 + 2Cr 2Al + Fe2O3 === Al2O3 + 2Fe 2Al + 3FeO === Al2O3 + 3Fe 2Al + 6HCl === 2AlCl3 + 3H2 2Al + 3H2SO4 === Al2(SO4)3 + 3H2 2Al + 6H2SO4(浓) === Al2(SO4)3 + 3SO2 + 6H2O (Al、Fe在冷、浓的H2SO4、HNO3中钝化) Al + 4HNO(稀) === Al(NO3)3 + NO + 2H2O 2Al + 2NaOH + 2H2O === 2NaAlO2 + 3H2 2Fe + 3Br2 === 2FeBr3 Fe + I2 === FeI2 Fe + S === FeS 3Fe + 4H2O(g) === Fe3O4 + 4H2 Fe + 2HCl === FeCl2 + H2 Fe + CuCl2 === FeCl2 + Cu Fe + SnCl4 === FeCl2 + SnCl2 (铁在酸性环境下、不能把四氯化锡完全 还原为单质锡 Fe + SnCl2==FeCl2 + Sn | 
