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高中化学所有碱金属元素方程式大全

05-06 15:53:45 编辑:张丹

  4Na+O2===2Na2O 2Na2O+ O2 Na2O2

  4Na+2O2 2Na2O2 2Na+S===Na2S(爆炸)

  2Na+2H2O===2NaOH+H2↑   Na2O+H2O===2NaOH 2Na2O2+2H2O===4NaOH+O2↑

  (此反应分两步:Na2O2+2H2O===2NaOH+H2O2;2H2O2===2H2O+O2.)

  Na2O+CO2===Na2CO3 2Na2O2+2CO2===2Na2CO3+O2

  Na2CO3+HCl===NaHCO3+NaCl NaHCO3+HCl===NaCl+H2O+CO2↑

  Na2CO3+2HCl===2NaCl+ H2O+ CO2↑ 2NaHCO3 Na2CO3+ H2O+ CO2↑

  4Li+ O2 2 Li2O 2K+2H2O===2KOH+H2↑

  NaHCO3 + NaOH== Na2CO3 + H2O Na2CO3+ H2O+ CO2 = 2NaHCO3

  2NaOH+ CO2 (少量)== Na2CO3 + H2O NaOH+ CO2(多量)== NaHCO3

  Na2CO3+ Ca(OH)2=Ca CO3↓+2 NaOH 2NaOH+SO2(少量)===Na2SO3+H2O

  NaOH+SO2(足量)===NaHSO3 NaOH+H2S(足量)===NaHS+H2O

  2NaOH+H2S(少量)===Na2S+2H2O NaOH+HCl===NaCl+H2O

  CO2+Ca(OH)2(过量)===CaCO3↓+H2O 2CO2(过量)+Ca(OH)2===Ca(HCO3)2

  Na2O+2HCl===2NaCl+H2O Na2O+SO3===Na2SO4

  CaCO3 CaO+CO2↑ MgCO3 MgO+CO2↑

  2Fe(OH)3 Fe 2O3 + 3H2O Mg(OH)2 Mg O+ H2O

  Cu(OH)2 Cu O+ H2O 2Al(OH)3 Al 2O3 + 3H2O

  CaCO3+H2O +CO2=Ca(HCO3)2 2NaOH + CuSO4 ==Cu(OH)2↓+ Na2SO4(www.xuexiya.com 学习呀)

  3NaOH + FeCl3 ==== Fe(OH)3↓ + 3NaCl

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