Предмет: Химия, автор: betta2509

Распишите любое ионное уравнение,пожалуйста

Ответы

Автор ответа: Аноним

0

а) 2Na++SO42-+Ba2++2NO3-=Ba2++SO42-+2Na++2NO3-. Сокращенное ионное уравнение: SO42-+Ba2+=BaSO4(осадок).

б) H2SO4+BaCl2=2HCl+BaSO4(осадок). Полное ионное уравнение:2H++SO42-+Ba2++2Cl-=2H++2Cl-+BaSO4(осадок). Сокращенное ионное:

Ba2++SO42-=BaSO4(осадок)

вот все()))))))))

Автор ответа: betta2509

0

спасибо большое,вы мне очень помогли

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: bukeevd62

СРОЧНО!!
Yesterday was the _____ of April. *
2 балла
A) third
B) three
C) day three
D) threeth
E) thirty
2. She’s got _____ hair. *
2 балла
A) dark, long
B) long and dark
C) long, dark
D) darkness, long
E) longer and dark
3. The _____ have seen it before. *
2 балла
A) childs
B) child
C) children
D) Kid
E) childrens
4. It’s the _____ interesting of his films. *
2 балла
A) more
B) much
C) than
D) most
E) many
5. I’ve never met an actor _____. *
2 балла
A) before
B) already
C) after
D) ever
E) since
6. _____ is very good exercise. *
2 балла
A) Swim
B) To swim
C) Swimming pool
D) Swimmer
E) Swimming
7. Have you _____ been on a winter sports holiday? *
2 балла
A) always
B) ever
C) soon
D) never
E) yet
8. You look very pale. I think you _______ go to the doctor. *
2 балла
A) can
B) may
C) should
D) might
E) could
9. They won’t come, _____ they? *
2 балла
A) won’t
B) come
C) will come
D) will
E) don’t
10. New Year _________ all over the world. *
2 балла
A) celebrates
B) celebrated
C) has celebrated
D) is celebrated
E) is celebrate
11. We _____ them at eight o’clock. *
2 балла
A) meet
B) ‘re meet
C) would meet
D) met
E) ‘re meeting
12. We _____ lunch when you phoned. *
2 балла
A) were having
B) had
C) was having
D) are having
E) have
13. They are going _____ in America next month. *
2 балла
A) to be
B) will be
C) be
D) being
E) to been
14. This is the cinema _____ we saw the film. *
2 балла
A) when
B) which
C) that
D) where
E) that
15. Tom has lived in this town _____ three years. *
2 балла
A) since
B) from
C) after
D) about
E) for
16. _____ does your sister look like? *
2 балла
A) What
B) How
C) Why
D) Which
E) When
17. I’ve got _____ many problems. *
2 балла
A) a
B) too
C) enough
D) really
E) a lot
18. I’m working _____ to pass my exam. *
2 балла
A) hardly
B) much
C) hard
D) harder
E) many
F) good
19. If we get up in time, _____ catch the train. *
2 балла
A) we catch
B) we caught
C) we had caught
D) would catch
E) we’ll catch
20. Who was _____ the door? *
2 балла
A) at
B) on
C) in
D) of
E) by
21. It was difficult at first, but I soon _____ it. *
2 балла
A) got used to
B) get used to
C) changed to
D) used to
E) use to do
22. A lot of ____ came to Ireland in the 1990s. *
2 балла
A) emigrants
B) invaders
C) visitors
D) immigrants
E) tourists
23. “It leaves from Platform 2 at 4.15.” The speaker is talking about ........ . *
2 балла
A) an airline flight
B) a train
C) a taxi
D) a motorbike
E) a boat
24. I mostly ___________my friends via email. *
2 балла
A) get on well with
B) have in commn
C) keep in touch with
D) see each other
E) chatting
25. He ______ his exam because he didn’t study. *
2 балла
A) wrote
B) passed
C) missed
D) fell
E) failed

5 лет назад

Предмет: Другие предметы, автор: Аноним

Укажите компоненты экосистемы и ее представителей.

5 лет назад

Предмет: Українська мова, автор: tymofiiihitiv

сколько розрядов в займенники

5 лет назад

Предмет: Обществознание, автор: yanayuschenko

голубые и белые звезды - это

9 лет назад

Предмет: Алгебра, автор: suytt123

Решите неравенства))))))))))))))

9 лет назад