Предмет: Химия, автор: danylenkoki

Укажіть тип хімічного зв'язку та кількість спільних електронних пар у молекулі N2.(балів: 2)

1

йонний

3

2

ковалентний неполярний

ковалентний полярний

Ответы

Автор ответа: flyklad
0

У молекулі N2 ковалентний неполярний зв'язок та 1 спільна електронна пара

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ПОМОГИТЕ!!!
1. Fill in the gap.

There are a lot of alligators in ...Nile.

A) a

B) an

C) -

D) the

2. Fill in the gap.

Which is ...building in the world?

A) highest

B) the highest

C) higher

D) most higher

3. Choose the correct word.

There aren't...fruits at that time of the year.

A) some

B) any

C) no

D) none

4. Fill in the gap.

What...he do for a living?

A) do

B) does

C) are

D) is

5. Fill the gaps with the correct word.

There was no bus, ...we had to walk.

A) because

B) although

C) that's why

D) due to

6. Fill in the gap.

Didn't you see the snow...Sunday?

A) at

B) on

C) in

D) for

7. Choose the right form of the word.

The boy works on the computer...

A) good

B) bad

C) better

D) well

8. Choose the right form of the modal verb.

Must we hurry? No, you ...we have much time.

A) can't

B) may not

C) won't

D) needn't

9. Choose the correct form of the verb.

I …video games for two years.

A) collected

B) am collecting

C) was collecting

D) have been collecting

10. Choose the right form of the verb.

The museum…to public in 1990.

A) has been opened

B) is opened

C) was opened

D) opened

11. Choose the correct form of the verb.

John told his friend that he…the competition.

A) won

B) had won

C) win

D) will win

12. Choose the correct form of the verb.

It often rained last summer.

A) Did it often rained in summer?

B) Did it often rain in summer?

C) Does it often rain last summer?

D) It often rained last summer?

13. Choose the right word.

She…asks the teacher a lot of questions.

A) already

B) almost

C) always

D) yet

14. Choose the right verb.

If I haven’t got enough money. I’ll…some from the bank.

A) give

B) take

C) ask

D) buy

15. Choose the right verb.

They…us an interesting story.

A) say

B) said

C) spoke

D) told