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