高一化学：必备知识点碱金属
2017-01-12 23:06:25
来源：精品学习网
(1)4Na+O2=2Na2O
(2)2Na+O2 2Na2O2
(3)2Na+2H2O=2NaOH+H2↑
(4)①2Na+Cl2=2NaCl
②4Na+TiCl4 Ti+4NaCl
(5)2Na2O2+2CO2=2Na2CO3+O2
(6)2Na2O2+2H2O=4NaOH+O2↑
(7)Na2O+CO2=Na2CO3
(8)Na2O+H2O=2NaOH
(9)2NaOH+CO2=Na2CO3+H2O
(10)NaOH+CO2=NaHCO3
(11)NaOH+HCl=NaCl+H2O
(12)2NaCl+2H2O 2NaOH+H2↑+Cl2↑
(13)Na2CO3+CO2+H2O=2NaHCO3
(14)2NaHCO3 Na2CO3+CO2↑+H2O
(15)Na2CO3+2HCl=2NaCl+H2O+CO2↑(反应相对NaHCO3慢)
(16)NaHCO3+HCl=NaCl+H2O+CO2↑(反应相对Na2CO3快)
(17)①Ca(OH)2+2NaHCO3=CaCO3↓+Na2CO3+2H2O
②Ca(OH)2+NaHCO3=CaCO3↓+NaOH+H2O
(18)4Li+O2 2Li2O
(19)2K+2H2O=2KOH+H2↑
(20)2Na+CuSO4+2H2O=Cu(OH)2↓+Na2SO4+H2↑
(21)NaH+H2O=NaOH+H2↑
(22)2Na+S Na2S
(23)NH4HCO3 NH3↑+H2O↑+CO2↑
(24)2NaCl(熔融)=2Na+Cl2↑
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