Предмет: Химия, автор: Prayse

Смешали 2 л водорода и 5л кислорода .найдите объёмную долю каждого газа в полученной смеси .

Ответы

Автор ответа: rubilovalex
0
1). 2+5=7(л)-объем смеси; 2:7=2/7-объемная доля водорода в смеси; 3). 5:7=5/7-объемная доля кислорода в смеси.
Похожие вопросы
Предмет: Английский язык, автор: nikanika58585
Поставить правильно и перевести, помогите пожалуйста!!!

1 I am looking forward to (see) you.
2 He dreads (have) to retire.
3 I arranged (meet) them here.
4 He urged us (work) faster.
5 I wish (see) the manager.
6 It's no use (wait).
7 He warned her (not touch) the wire.
8 Don't forget (lock) the door before (go) to bed.
9 My mother told me (not speak) to anyone about it.
10 I can't understand her (behave) like that.
11 He tried (explain) but she refused (listen).
12 At dinner she annoyed me by (smoke) between the courses.
13 You are expected (know) the safety regulations of the college.
14 He decided (disguise) himself by (dress) as a woman.
15 lam prepared (wait) here all night if necessary.
16 Would you mind (show) me how (work) the lift?
17 After (walk) for three hours we stopped to let the others (catch with us.
18 I am beginning (understand) what you mean.
19 He was fined for (exceed) the speed limit.
20 The boys like (play) games but hate (do) lessons.
21 I regret (inform) you that your application has been refused.
22 I couldn't help (overhear) what you said.
23 Mrs Jones: I don't allow (smoke) in my drawing-room.
Mrs Smith: I don't allow my family (smoke) at all.
24 He surprised us all by (go) away without (say) 'Good-bye'.
25 Please go on (write); I don't mind (wait).
26 He wore dark glasses (avoid) (be) recognized.
27 Before (give) evidence you must swear (speak) the truth.
28 I tried (persuade) him (agree) with your proposal.
29 Your windows need (clean); would you like me (do) them for you?
30 Would you mind (shut) the window? I hate (sit) in a draught.
31 I can't help (sneeze); I caught a cold yesterday from (sit) in a draught.
32 Do stop (talk): I am trying (finish) a letter.
33 His doctor advised him (give up) (jog).
34 My watch keeps (stop). ~
That's because you keep (forget) (wind) it.
35 Without (realize) it. he hindered us instead of (help) us.
36 People used (make) fire by (rub) two sticks together.
Предмет: История, автор: ляля04