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Между молекулами аммиака слабое межмолекулярное взаимодействие, поэтому аммиак
1) ядовит; 2) летуч; 3) пластичен; 4) электропроводен.-
Предмет:
Химия -
Автор:
peachesreilly - 5 лет назад
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Ответы 1
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2. поскольку он летуч. так взаимодействие слабое, то соединение будет летучим, переходящим в газообр. сотояние
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Автор:
yareliywj7 - 1 год назад
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10
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Раскройте скобки, употребляя глаголы в одном
из времен: P r e s e n t S i m p l e , P a s t S i m p l e , P r e s e n t
C o n t i n u o u s , P a s t C o n t i n u o u s .
1. You (to know) him? He always (to tell) a lie.
2. What he (to do) here? — He (to wait) for his friend.
3. When I (to come) yesterday, I (to see) that my brother
(to do) his lesson.
4. Where (to be) Nick? — He (to play) tennis. - He (to
play) tennis well.
5. My wife (to be) in her room now. She (to sit) in the armchair
and (to read) an interesting book. I (to want) to
read this book, too.
6. Where she (to be) yesterday? — She (to visit) her friend.
They (to play) chess the whole evening.
7. What they (to do) the whole day last Sunday? - They
(to spend) the whole day in the country.
8. When I (to look) out of the window, I (to see) that it (to
snow) and everything (to be) covered with snow,
9. Somebody (to talk) in the next room? — No, nobody (to
talk). My son (to watch) television now.
10. Why he (not to go) to school yesterday? — He (to be) ill.
He (to stay) in bed the whole day.
11. You (to work), when I phoned you last night? - Yes, I
(to work).
12. Why they (to sit) here now? - They (to wait) for their
doctor. The doctor (to be) late.
13. He (to ask) you to work late last Tuesday? - No, he (not
to ask). I (to decide) to work late myself.
14. Yesterday (to be) a typical summer day, the sun (to
beat) down, the sky (to be) cloudless.
15. Yesterday, when he (to open) the door, he (to understand)
that he (to do) it with a wrong key.
16. Every day she (to return) home, (to have) dinner and
(to rest). But yesterday she (not to rest) after dinner,
she (to work) at her report the whole evening.
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