摘要：1．制备 除掌握常见气体和典型有机物的制备方法外.做其它综合制备题时.思路往往是逆向的.几种常见气体的反应原理见下表 1 O2 2KClO32KCl+3O2↑ 2KMnO4K2MnO4+MnO2+O2↑ 2 NH3 2NH4Cl+Ca(OH)2CaCl2+2NH3↑+2H2O 3 CH4 CH3COONa+NaOHNa2CO3+CH4↑ 4 H2 Zn+H2SO4(稀)=ZnSO4+H2↑ 5 CO2 CaCO3+2HCl=CaCl2+CO2↑+H2O 6 H2S FeS+H2SO4(稀)=FeSO4+H2S↑ 7 SO2 Na2SO3+H2SO4(浓)=Na2SO4+SO2↑+H2O 或Cu+2H2SO4(浓)CuSO4+SO2↑+2H2O 8 NO2 Cu+4HNO3(浓) Cu(NO3)2+2NO2↑+2H2O 9 NO 3Cu+8HNO3(稀) 3Cu(NO3)2+2NO↑+4H2O 10 C2H2 CaC2+2H2OCa(OH)2+CH≡CH↑ 11 Cl2 MnO2+4HCl(浓)MnCl2+Cl2↑+2H2O 12 HCl NaCl(固)+H2SO4(浓)NaHSO4+HCl↑ 13 C2H4 C2H5OHCH2=CH2↑+H2O 14 N2 NaNO2+NH4ClNaCl+N2↑+2H2O

网址：http://m.1010jiajiao.com/timu_id_4389181[举报]