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离子共存问题1.Na2CO3+HCl=NaHCO3+NaCl 2.Na2CO3+2HCl=H2O+CO2↑+2NaCl 3.Na2SO3+HCl=NaHSO3+NaCl 4.Na2SO3+2HCl=H2O+SO2↑+2NaCl 5.Na2S+HCl=NaHS+NaCl 6.Na2S+2HCl=H2S↑+2NaCl7.2CH3COONa+H2SO4=2CH3COOH+Na2SO4 8.NaF+HCl=HF+NaCl 9.Na2SiO3+H2SO4=H2SiO3↓+Na2SO4 10.2KClO+H2SO4=2HClO+K2SO4 11.2NaHCO3+H2SO4=2H2O+2CO2↑+Na2SO4 12.NaHSO3+HCl=H2O+SO2↑+NaCl 13.NaHS+HCl=H2S↑+NaCl 14.NaHCO3+NaOH=H2O+Na2CO3 15.NaHSO3+NaOH=H2O+Na2SO3 16.NaHS+NaOH=H2O+Na2S17.NH4Cl+NaOH=NH3↑+NaCl+H2O 18.NH4NO3+KOH=NH3·H2O+KNO319.NaHCO3+NaHSO4=H2O+CO2↑+Na2SO4在同一溶液中与H+不大量共存的离子与OH―不大量共存的离子强酸性1.Na2CO3+HCl=NaHCO3+NaCl 2.Na2CO3+2HCl=H2O+CO2↑+2NaCl3.Na2SO3+HCl=NaHSO3+NaCl 4.Na2SO3+2HCl=H2O+SO2↑+2NaCl5.Na2S+HCl=NaHS+NaCl 6.Na2S+2HCl=H2S↑+2NaCl7.2CH3COONa+H2SO4=2CH3COOH+Na2SO4 8.NaF+HCl=HF+NaCl 9.Na2SiO3+H2SO4=H2SiO3↓+Na2SO4 10.2KClO+H2SO4=2HClO+K2SO4 亚硫磷酸氢氟酸 甲酸苯甲醋酸 碳酸氢硫次氯酸 氰酸石炭酸