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Очень надо химия 9 класс
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Предмет:
Химия -
Автор:
finnegan55 - 1 год назад
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Ответы 1
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а) Взаимодействие, которой с солями железа(III) приводит к образованию солей железа(II): HF (плавится перемещением протона) и HBr.
б) Кислота, которая взаимодействует с кислотным оксидом SiO2: HF.-
Автор:
genevievebarker - 1 год назад
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Срочно!!!!
A. Complete the following sentences with the correct form of the words in capitals.
1.Charlotte’s___ has increased since she started working at this company.(confide)
2.It’s important for applicants to be aware of their strengths and their___(weak)
3.Make sure you measure the length and___of the door.(wide)
4.We played card games in order to relieve the___of the long flight. (bore)
5.Mary had a very happy___,because she loved growing up on a farm.(child)
6.I found the___ to the book helpful.(introduce)
7.The pilots had to land the plane in a field because they were experiencing engine___(fail)
B.Choose the world or phrase that best completes each sentence.
1. I am not sure how this computer program is supposed to___;can you show me?
a)fuction b)perform c)produce d)play
2. I don't want any dark colours in the wash. Will you please___ your black socks?
a)eject b)remove c)launch d)replace
3.I was relieved when the doctor told me that my blood
pressure was___
a)common b)natural c)typical d) normal
4. I really liked Angelina Jolie's___in Tomb Raider.
a)character b)fashion c)type d)personality
5.The___ of the movie was very confusing and hard to follow.
a)cart b)set c)plot d)script
6.You___ Kate before she found out. Now it's too late.
a)should tell b)shouldn’t tell c)should have told d)shouldn’t have told
7.Stop pretending to be confused; you're smart enough___ what I'm talking about.
a)understand b) understanding c)having understood d)to understand
8. Emily couldn't help___ that the long walk had exhausted her grandmother.
a)notice b)noticing c)noticed d)to notice
9.You___ change out of your wet clothes, Otherwise you'll catch a cold.
a)need b)had better c)should better d) needn’t
10.Sandra claims___ Brad Pitt's best friend. Obviously, no one believes her.
a)to be b)being c)be d)have been
11. After a serious argument last year, they stopped___to each other.
a)talking b)having talked c)to talk d)to have talked
12.You___ Kelly driving a red Porsche; she doesn't know how to drive.
a)can’t see b)must have seen c)must see d)can’t have seen
C. Complete the sentences using the -ing form or the infinitive of the verbs in brackets.
1. It was Mr Kent who suggested Mike's___(study) abroad.
2. You don't expect me___(believe) that you actually met the Prime Minister, do you?
3. The board of directors discussed the project, then went on___(discuss) another topic.
4. Why continue___(work) there if you don't like your job?
5. He regrets___(not go) to see his grandfather in Paris.
6. It's worth___(shop) at Stacey's as it's very cheap.
7. My doctor doesn't permit me ___(eat) red meat.
8. Greg would rather___(spend) the holidays___(ski) than___
(sunbathe) on a beach somewhere.
9. I was driving home when I noticed some workers___
(put up) new traffic lights on
Coronation Street.
10. Anyone can___(get) used to___(live) a life of luxury.
11. Will you stop___(complain)!
It doesn't help___(solve) the problem.
12. If you ever decide___(sell) your car,let me___(know).
13. I would like you___(water) the plants for me at the weekend.
14. I clearly remember___ (set) my alarm clock before___ (go) to bed last night.
15. These plants require___ (water) every day.
16. I resent you___(speak) to me like that! Have some respect!
17. It would be good for the children___(play) outdoors more often.
18. I promised___(take) Jill to the
airport, but I don't feel like___
(go) now.
19. Don't waste your time___
(look for) the document. Ask Mr Gale.
20. Please, excuse his early. He wants___(leave) so___(catch up) with his___ (study).
B. Complete the second sentence so that it has a similar meaning to the first, using the word given. Do not change the word given. You must use between two and five words, including the word given.
1. It wasn't necessary for you to wake up so early today.
-You____so early today (have)
2. Sue will make an effort to get there on time.
-Sue____on time (try)
3. I'm sure Ted didn't write this essay because it's not his handwriting.
-Ted____ this essay because it's not his handwriting.(have)
4. It was wrong of you to cheat in the exam.
-You____in the exam (ought )
5. She never appeared on TV again after the scandal became known.
-She____ after the scandal became known.(stopped )
6. Julie didn't lock the door when she left the house.
-Julie_____the door(without )
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Автор:
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Ответов:
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ДАЮ 100 БАЛІВ на птахоферму привезли корм якого качкам вистачить на 30 днів а гусям на 15 днів Визнач на скільки днів вистачить цього корму й качка і гусям якщо годувати їх разом !!!по діях та поскоріше пліз!!!
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