2Na + H2 === 2NaH
4Na + O2 === 2Na2O
2Na2O + O2 === 2Na2O2
2Na + O2 === Na2O2
2Na+S === Na2S(爆炸)
2Na + 2H2O === 2NaOH + H2
2Na+2h 3 = = = 2n H2+H2
4Na+TiCl4(熔化)== 4NaCl+Ti
Mg + Cl2 === MgCl2
Mg + Br2 === MgBr2
2毫克+氧氣= = = 2毫克
Mg + S === MgS
Mg + 2H2O === Mg(OH)2 + H2
2毫克+四氯化鈦(熔融)===鈦+2毫克氯化鈦
Mg + 2RbCl === MgCl2 + 2Rb
2毫克+二氧化碳= = = 2毫克+二氧化碳
2Mg + SiO2 === 2MgO + Si