Напишите уравнения ступенчатой диссоциации этих веществ, формулу для выражения констант - №19739126

Напишите уравнения ступенчатой диссоциации этих веществ, формулу для выражения констант диссоциации. FrOH Mg(OH)2 HMnO4 H2CO3
- Предмет:
  Химия
- Автор:
  biscuitnyth
- 5 лет назад

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1. There are five ….. and fifteen …… in the basket.
A. appls, plumes
B. apples, plums
C. appls, plums
D. apples, plumes
2. Do ….. clean their ….. ?
A. mouses, tooths
B. mice, toths
C. mice, teeth
D. mouses, teeth
3. How many ….. have two .… got?
A. wifes, mans
B. wifes, mens
C. wives, man
D. wives, men
4. There are many ….. in the library.
A. dictionarys
B. dictionaries
C. dictionaryes
D. dictionares
5. This … name is Bob.
A. man’s
B. men’s
C. mans
D. men
6. How many people … yesterday?
A. are there
B. were there
C. there are
D. there were
7. 2. I’m afraid … no water in the bottle.
A. there is
B. there are
C. there isn’t
D. there aren’t
8. . … anything to eat at the party tomorrow?
A. There will be
B. Won’t there be
C. Will there be
D. There won’t be
9. … no news since last Tuesday.
A. There was
B. There hasn’t been
C. There wasn’t
D. There has been
10. Can you see … cat in … tree?
A. a, the
B. ---- (nothing), a
C. the, the
D. a, ---- (nothing)
11. Will you pass me … salt, please?
A. the
B. a
C. an
D. ---- (nothing)12. Those are … great jeans! How much were they?
A. a
B. the
C. an
D. ---- (nothing)
13. Why are … windows so dirty? When did you clean them last?
A. a
B. the
C. an
D. ---- (nothing)
14. We waited for … hour but nothing happened.
A. a
B. the
C. an
D. ---- (nothing)
15. Do you know what is … river in the world ?
A. the longest
B. longest
C. the most long
D. most long
16. The … the goods are, the … the price is.
A. worse, lowest
B. worst, lower
C. worst, lowest
D. worse, lower
17. People choose planes because they travel … than trains.
A. more fast
B. faster
C. fastest
D. most fast
18. The … I forget, the … I know.
A. most, least
B. most, less
C. more, less
D. more, least
19. Some people say children are … when they sleep.
A. the best
B. better
C. the better
D. best
20. …there . It,s dangerous.
A. Not go
B. Go not
C. Don’t go
D. Go don’t
21. Please, Mike, … those books there.
A. does take
B. take
C. takes
D. take do
22. In winter … sometimes very cold outside.
A. there is
B. this is
C. it is
D. that is
23. In our garden … five apple-trees and a cherry-tree.
A. there is
B. it isC. there are
D. they are
24. In Mary,s garden ... an apple-tree and five cherry-trees.
A. there is
B. it is
C. there are
D. they are
25. This is my chair and … your armchair over there.
A. this is
B. those are
C. these are
D. that is
26. Hey, Jenny! … your parents on top of that hill?
A. Are that
B. Are those
C. Those are
D. That are
27. George ………………….. fly to Stockholm tomorrow.
A. go to
B. is going to
C. goes to
28. He ………………….. breakfast yesterday.
A. hadn’t have
B. didn’t have
C. no had
29. The door can’t be broken! He ………………..
A. has just fixed it.
B. just fix it.
C. have just fixed it.
30. He works for the bank, …………………?
A. doesn’t he?
B. isn’t he?
C. does he?
31. I ………………… getting up early. I do it every day.
A. used to
B. am used to
C. used
32. I ………………. at night when a student.
A. used to work
B. am used to work
C. used to working
33. We were hurrying because we thought that the bell ………………...
A. had already rang
B. had already rung
C. has already rang
34. . . . . . . her since my childhood.
A. know
B. have known
C. knew
35. You are too late! The program. . . . . . at least two hours ago.
A. has started
B. started
C. starts
36. My tape-recorder. . . . . . . out of order for a long time. Let us take yours.
A. has been
B. was
C. was being
37. Normally I. . . . . for a ride on Friday evenings but tomorrow I can`t because I. . . . . . . . . late.A. go. . . . . work
B. am going. . . . work
C. go. . . . . am working
38. She says she. . . . . . . . a good time with her new friends in Spain.
A. has
B. is having
C. have
39. This kind of sport. . . . . . more and more popular these days.
A. becomes
B. is becoming
C. become
40. Why are your hands so dirty? - I. . . . . . . . . . . the car.
A. have fixed
B. have been fixing
C. fix
41. . . . . . . . . . the car and we can go now.
A. have fixed
B. have been fixing
C. fix
42. You look tired! How long. . . . . . . . . you. . . . . . . . . tennis?
A. have. . . . . . . . . . . played
B. have. . . . . . . . . . . . been playing
C. do. . . . . . . . . . . .play
43. After graduation he applied for this job and he. . . . . . . . there ever since.
A. has worked
B. has been working
C. had worked
44. You were out of breath when I met you yesterday. . . . . . . you. . . . . . ?
A. Had. . . . . . . jogged
B. Had. . . . . . been jogging
C. Have you jogged
45. She. . . . . . . . . . . . . . . . . for 3 hours when we woke her up.
A. had slept
B. had been sleeping
C. has been sleeping
46. When the police arrived the thief. . . . . . and there was nobody around.
A. had got away
B. had been getting away
C. has got away
47. He quickly forgot everything he. . . . . . . . . at school.
A. had learnt
B. had been learning
C. has learnt
48. They. . . . . . . . . . the new road by the end of the month.
A. `ll have built
B. `ll have been building
C. `ll build
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