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1、选择题 已知4NH3+5O2==4NO+6H2O,同一反应速率若分别用v(NH3)、v(O2)、v(H2O)、v(NO)(mol·L-1·min-1)来表示,则正确关系是
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时间:2017-11-11 01:11:52
1、选择题 已知4NH3+5O2==4NO+6H2O,同一反应速率若分别用v(NH3)、v(O2)、v(H2O)、v(NO)(mol·L-1·min-1)来表示,则正确关系是
A.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/ybchb2gl3fv.png\" style=\"vertical-align:middle;\">v(NH3)=v(O2)
B.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/u1nxr2ktkqz.png\" style=\"vertical-align:middle;\">v(O2)=v(H2O)
C.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/15ntgte4eyz.png\" style=\"vertical-align:middle;\">v(NH3)=v(H2O)
D.600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060704/ybchb2gl3fv.png\" style=\"vertical-align:middle;\">v(O2)=v(NO)
2、选择题 已知:4NH3+5O2600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/ggbs1d43mdn.png\" style=\"vertical-align:middle;\">?4NO+6H2O,若反应速率分别用
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/3zzq3kjsojb.png\" style=\"vertical-align:middle;\">、
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/ppx5ltcmgam.png\" style=\"vertical-align:middle;\">、
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/zx1n2mbgomn.png\" style=\"vertical-align:middle;\">、
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/5hzrzshgyjo.png\" style=\"vertical-align:middle;\">[(mol / (L·min)]表示,则正确的关系是 (? )
A.4600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/3zzq3kjsojb.png\" style=\"vertical-align:middle;\">=5
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/ppx5ltcmgam.png\" style=\"vertical-align:middle;\">
B.5600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/ppx5ltcmgam.png\" style=\"vertical-align:middle;\">=6
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/5hzrzshgyjo.png\" style=\"vertical-align:middle;\">
C.2600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/3zzq3kjsojb.png\" style=\"vertical-align:middle;\">=3
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/5hzrzshgyjo.png\" style=\"vertical-align:middle;\">
D.4600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/ppx5ltcmgam.png\" style=\"vertical-align:middle;\">=5
600)makesmallpic(this,600,1800);\' src=\"http://www_php168_com/91files/2016060718/zx1n2mbgomn.png\" style=\"vertical-align:middle;\">
3、选择题 过量的锌粉与一定量的稀盐酸反应,为了减慢反应速率,但是又不影响生成的氢气总量,可以采取的措施是
[? ]
A.升高温度
B.加入适量的水
C.加入少量CuSO4
D.加入浓度较大的盐酸
4、选择题 对于100mL 1mol/L盐酸与锌粒的反应,采取下列措施能使反应速率加快的是:
①升高温度;②改用100mL 3mol/L盐酸;③多用300mL 1mol/L盐酸;④用等量锌粉代替锌粒
[? ]
5、选择题 将ag块状碳酸钙跟足量盐酸反应,反应物损失的质量随时间的变化曲线如图所示,在相同条件下,将b g(a>b)粉末状碳酸钙与同浓度的盐酸反应,则相应的曲线(图中虚线所示)正确的是
[? ]
A.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/ulpym2drz54.gif\">
B.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/alovnawp3lo.gif\">
C.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/e0rhpvkryok.gif\">
D.600)makesmallpic(this,600,1800);\' style=\"VERTICAL-ALIGN: middle\" border=\"0\" src=\"http://www_php168_com/91files/2016060717/2a3ulry0jf4.gif\">