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1、选择题 下列解释实际应用的原理表达式中,不正确的是
[? ]
A.用排饱和食盐水法收集Cl2:Cl2+H2O600)ma ">
时间:2019-06-25 21:24:36
1、选择题 下列解释实际应用的原理表达式中,不正确的是
[? ]
A.用排饱和食盐水法收集Cl2:Cl2+H2O600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060720/p0mq1yn4ffc.gif\">H++Cl-+HClO
B.用热的纯碱溶液清洗油污:CO32-+2H2O600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060720/a0w1vs3jjxz.gif\">H2CO3+2OH-
C.用Na2CO3溶液处理水垢中的CaSO4:CaSO4 +CO32-600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060720/auejskzcgwp.gif\">CaCO3+SO42-
D.用TiCl4制备TiO2:TiCl4+(x+2)H2O(过量)600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060720/auejskzcgwp.gif\">TiO2·xH2O↓+4HCl
2、选择题 下列离子方程式书写正确的是
A.NaHS水解反应:HS-+ H2O 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/pj3r1cup4u4.png\" style=\"vertical-align:middle;\">H3O++ S2-
B.明矾加入在水中起净化作用的原因:Al3++ 3H2O 600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/pfdgufnieyu.png\" style=\"vertical-align:middle;\">Al(OH)3(胶体) + 3H+
C.氢氧化钡溶液与稀硫酸反应:600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/3mwfk00xznf.png\" style=\"vertical-align:middle;\">
D.碳酸氢钠溶液中加入过量Ba(OH)2溶液:
2HCO3- + Ba2+ + 2OH- = BaCO3↓+ CO32-+ 2H2O
3、选择题 等体积、等物质的量浓度的NaCl、MgCl2、AlCl3三种溶液分别与等物质的量浓度的AgNO3溶液恰好完全反应,则与NaCl、MgCl2、AlCl3三种溶液反应的AgNO3溶液的体积比为( )
A.1:1:1
B.1:2:3
C.3:2:1
D.6:3:2
4、选择题 下列离子在酸性溶液中能大量共存的是(?)
A.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/1danahpfhg1.gif\" style=\"vertical-align:middle;\">
B.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/uyjlu3dawvb.gif\" style=\"vertical-align:middle;\">
C.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/qk4yxt0v3rf.gif\" style=\"vertical-align:middle;\">
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/gcdnccudfyv.gif\" style=\"vertical-align:middle;\">
D.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/i4okomq2p04.gif\" style=\"vertical-align:middle;\">
5、选择题 下列离子方程式的书写中正确的是
A.碳酸氢钙溶液中加入足量烧碱溶液:600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/usgxww0e2ke.png\" style=\"vertical-align:middle;\">===
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/1g5g52dq3xi.png\" style=\"vertical-align:middle;\">
B.向溴水中通入600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/gqazzexdveh.png\" style=\"vertical-align:middle;\">:
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/susatdnb0p3.png\" style=\"vertical-align:middle;\">===
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/avabyb0zruh.png\" style=\"vertical-align:middle;\">
C.向氨水中通过量600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/ff1odmhekhj.png\" style=\"vertical-align:middle;\">:
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/xfqicek20sj.png\" style=\"vertical-align:middle;\">===
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/d4vtd142m5m.png\" style=\"vertical-align:middle;\">
D.向次氯酸钙溶液中通入少量的600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/gqazzexdveh.png\" style=\"vertical-align:middle;\">:
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/5gt4fzy0kxc.png\" style=\"vertical-align:middle;\">===
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060720/ohjpoi1dxnh.png\" style=\"vertical-align:middle;\">