Mg + 2H2O = 2Mg(OH)2↓ + H2↑
2Mg +CO22MgO+C
Mg +2HCl ＝MgCl2+ H2↑
2Mg+TiCl4(熔融)＝Ti+2MgCl2
2NH3+3Cl2＝N2+6HCl
4NH3+3O2(纯氧)=2N2+6H2O
2Na+2H2O＝2NaOH+H2↑
Na2S + Cl2＝2NaCl+S↓