Предмет: Химия, автор: kritonolga

Помогите пожалуйста произвести превращение!!!
гидроксид аммония - хлорид аммония - сульфат аммония - гидросульфат аммония - серная кислота

Ответы

Автор ответа: Alexei78
0
NH4OH-->NH4CL-->(NH4)2SO4-->(NH4)HSO4-->H2SO4
NH4OH+HCL-->NH4CL+H2O
2NH4CL+H2SO4-->(NH4)2SO4+2HCL
(NH4)2SO4+H2SO4-->2NH4HSO4
NH4HSO4-->NH3+H2SO4
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1. He knew that she … the next week.

a) Will return

b) Would have returned

c) Would return

d) Would be returning

2. … the book … your bag?

a) Was, into

b) Is, in

c) Are, to

d) Were, from

3. Какое предложение построено верно?

a) If I will help you, will you complete this work tomorrow?

b) If I help you, will you complete this work tomorrow?

c) Will you complete this work tomorrow If I will help you?

d) If will I help you, will you complete this work tomorrow?

4. I have got … … books on this subject but my friend has got very … on it.

a) ---, few, much

b) A, few, much

c) A, few, many

d) ---, few, many

5. You haven’t got any English books, … …?

a) You, do

b) Do, you

c) Have, you

d) Haven’t, you

6. What … by 7pm tonight?

a) Will she be doing

b) Will she have done

c) Will do

d) Will have she done

7. He asked them if they … in that work.

a) Would take part

b) Have taken part

c) Will take part

d) Would have been taken part

8. We said that by the time she … us up she … for two hours.

a) Picks, will have been driving

b) Picked, would have been driving

c) Would pick, would have driven

d) Would have picked, would be driving

9. They have got … … books on this subject. They won’t buy any more.

a) A, few

b) ---, few

c) Not, much

d) Not, many

10. I thought that you … late.

a) Would have been

b) Will be

c) Would been being

d) Would be

11. She does not read … … .

a) A, little

b) ---, little

c) A, lot of

d) ---, not many

12. We are … school now.

a) In

b) On

c) From

d) At

12. How … English books … you … ?

a) Much, do, have

b) Many, have, got

c) Much, have, got

d) Many, ---, have

13. … she often come here?

a) Is

b) Are

c) Does

d) Do