-
Вопрос по химии:
в каком из природных соединений кальция сасо3 или сао массовая доля са больше-
Автор:
kendrick
-
-
M(CaO) = 56 g/mol
M(CaCO3) = 100 g/mol
W(Ca)(CaO) = (40/56)*100 = 71.43%
W(Ca)(CaCO3) = (40/100)*100 = 40%
71.43 > 40
==> больше в CaO.
Еще 4 ненужных тебе вопроса, но это важно для поиска
-
Вопрос по українській мові:
НЕправильно побудовано речення:
А )Виконуючи вправи для очей, тримайте голову рівно.
Б)Повернувшись додому, мене не полишав радісний настрій.
В) Коли я вийшов зі школи, несподівано пішов дрібний дощ.
Г) злякавшись, зграя птахів важко піднялася над водою.
Д)Розв'язуючи задачу, діти користувалися посібниками.
-
Ответов: 1
-
5 лет назад
-
-
Вопрос по английскому языку:
Insert the verbs in the correct form.
If I had a spare ticket,I … take you to the cinema.
a) would b) will
2. John suggested that I should … for another job.
a) look b) have looked
3. If she … you,she would be able to advise you.
a) had been b) were
4. We were afraid lest he should … too early.
a) have come b) come
5. She would buy a new fur coat if her husband … enough money.
a) would give b) gave
6. If the students attended all the lectures,they … their exams successfully.
a) would pass b) passed
7. If I were you I … him.
a) would not forgive b) did not forgive
8. I would help the poor if I … very rich.
a) would be b) were
9. If I were a doctor,I … people healthy.
a) made b) would make
10. They … to the country if the weather were better.
a) would go b) went
II 1. If I (know) his name,I’d give it to you.
He (look) a lot better if he did more esercise.
If he worked more carefully,he (not make) so many mistakes.
I wouldn’t do that if I (be) you.
More tourists would come to this seaside if it (have) better climate.
If someone (give) you a submarine,what would you do with it?
If you (not belong) to a union,you couldn’t get a job.
If I (win) a big prize in a lottery,I’d give up my job.
He might get fat if he (go on) eating like that.
If he knew that it was dangerous,he (not come).
III 1. If you (go) on a diet,you (lose) weight.
If we (work) all night,we (finish) in time.
If I see a tiger walking across Hyde Park,I (climb) a tree.
If you (keep) a cat,the mice (not run) about everywhere.
If it (be) summer,the people (not sit) round that big fire.
If you (paint) the walls white,the room (be) much bigger.
If he (take) any exercise,he (not be) so unhealthy.
If they (speak) English to her,her English (improve).
If I (ask) him for help,he (help) me.
If I (know) his address,I (can) write to him.-
Ответов: 1
-
5 лет назад
-
-
Вопрос по математике:
Как можно разделить на части длиной 15 м и 3м кружева длиной 18м, не пользуясь никакими измерительными приборами? Ответьте пожалуйста буду благодарен плиииииз-
Ответов: 1
-
5 лет назад
-
-
Вопрос по химии:
обчислити масу сульфатної кислоти, що містить в 200г її розчину, в якому масова частка кислоти становить 20%-
Ответов: 1
-
5 лет назад
-