1-5 ADAAB6-10 CCBCD11-15 DCBCC16-20 BCDCD21-25 CCCBA26:(1)2Na+2H2O=4NaOH+H2(2) AlCl3+3NaOH=Al(OH)3+3NaCl(3) H2+Cl2=点燃=2HCl(4) CH2=CH2+H2O=一定条件=CH3-CH2-OH27:(1)(2)(3)共价键(4)HCl (5)NaOH28:(1)ab (2)cd 29:(1)A (2)B (3)D30:(1)溶解并蒸发 过滤 (2)引入硝酸根杂质 (3)除去多余的钡离子 (4)盐酸 2H+CO32-=CO2+H2O31:(1)3Cu+ 8H+ +2NO3- = 3Cu2+ + 2NO +4H2OCu + 4H+ + 2NO3- = Cu2+ 2NO2+ 2H2O(2)0.05mol