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【正文】 H3COOH=I2+6CH3COO+3 H2O++沸水:Fe3+3 H2O(沸水)= Fe(OH)3(膠體)+3 H++ CO2:C6H5O+ H2O +CO2= C6H5OH+HCO3++HNO3(稀,不足):3Fe+8H++2NO3=3 Fe 2+2NO↑+4 H2O++HNO3(稀,過量):Fe+4H++NO3= Fe 3+NO↑+2 H2O+-+-+Cl2(過量):2Fe 2+4Br+3Cl2= 2Fe 3+2Br2+ 6Cl++-+Cl2(不足):2Fe 2+Cl2=2Fe 3+ 2Cl--(ClO)2+ SO2+H2O:ClO+ SO2+H2O= HClO+ SO42+H+(HCO3)2+ Ca(OH)2:Mg2++2HCO3+ 2Ca2++4OH= Mg(OH)2↓+ CaCO3↓+2 H2O--+ NaOH(過量):NH4++ HCO3+2OH=NH3H2O=Al(OH)3↓+3NH4+18.NaHCO3+ Ca(OH)2(不足):2 HCO3+ Ca 2++2OH= CaCO3↓+2 H2O+ CO32NaHCO3+ Ca(OH)2(過量):HCO3+ Ca 2++OH= CaCO3↓+ H2O19.NaHSO4+ Ba(OH)2(呈中性):2 H++2 OH+ SO42+ Ba2+= BaSO4↓+2 H2ONaHSO4+ Ba(OH)2(恰好沉淀):H++ OH+ SO42+ Ba2+= BaSO4↓+ H2O20.NH4HSO4+ Ba(OH)2(等物質的量):NH4++ H++ SO42+ Ba2++2 OH= BaSO4↓+2 H2ONH4HSO4+ Ba(OH)2(物質的量之比2:1):2 H++ SO42+ Ba2++2 OH= BaSO4↓+2 H2O21.Ca(OH)2+ CO2(不足):Ca 2++ 2 OH+CO2= CaCO3↓+ H2OCa(OH)2+ CO2(過量)OH+CO2= HCO3+ CO2(不足):2 OH+CO2= CO32+ H2ONaOH+ CO2(過量):OH+CO2= HCO3+ NaOH(不足):Al3++3 OH= Al(OH)3↓AlCl3+ NaOH(過量):Al3++4 OH= AlO2+2 H2O+ HCl(不足):AlO2+H+ + H2O= Al(OH)3↓NaAlO2+ HCl(過量):AlO2+4H+= 4 Al3++2 H2O+ HCl(不足):CO32+H+= HCO3Na2CO3+ HCl(過量):CO32+2H+=
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