Предмет: Химия, автор: Читатель111

Срочно!!!!BaCl2+SO4 полное ионно и сокр ионное

Ответы

Автор ответа: Диляра1981

BaCl2 + (NH4)2SO4=> BaSO4↓+2NH4Cl
Полное ионное уравнение:
Ba(2+) + 2Cl(-) + 2NH4(+) + SO4(2-) => BaSO4↓ + 2Cl(-) + 2NH4(+)
В краткой форме:
Ba(2+) + SO4(2-) => BaSO4↓

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Математика, автор: SuicideXmouse

Если s: r: t = 5 : 6 : 7 и s+r-t= 8,
то r = ?
(А) 10
(Б) 12
(В) 14
(Г) 16
Д) 18

С объяснением

7 лет назад

Предмет: Английский язык, автор: layloorazimbetova42

1. Usually ___ traffic in our city and it’s quiet.

a) there is a lot of

b) there isn’t much

c) there are many

d) there aren’t much

2. My uncle always speaks and laughs ___.

Because, he has a problem with his ears.

a) loudly b) quiet

c) slowly d) fast

Find the right prepositions with the verbs 3-6

a) at b) on c) off d) with

3. The hedgehog smiled ___ Heggy and Chamby.

4. When I was get ___ the bus, I saw my old friend at the bus stop.

5. There were some coins ___ the ground.

6. Bob was getting ___ the bus, and showing his ticket to the driver.

7. What were you doing at 6 o’clock yesterday?

a) I did my homework.

b) I watched TV and then I was sleeping.

c) I am helping my mum with dinner.

d) I was eating a dinner with my family.

8. What did you do in the afternoon?

a) I was at home.

b) I sleeping at home.

c) I do my homework in the afternoon.

d) I was OK.

9. When I came home, my sister was ….

a) talked on the phone.

b) was helping my mum.

c) watching TV.

d) always helps mum with cooking.

10. Now it’s 6 o’clock evening.

Yesterday at 6 o’clock …

a) I was sweeping the floor.

b) I dusted the room.

c) I help my mum at this time.

d) We had a dinner.

11. Find the right question.

a) Where you were going when I saw you?

b) What was he doing at 2 o’clock yesterday?

c) Were they did their homework yesterday evening?

d) Was she taking the rubbish out at that time?

12. The birds ____ and I couldn’t feed them with corn.

a) flew down b) were flying down

c) flew away d) flew

13. Later the birds ___ and ate all corn.

a) flew down b) flew on

c) flew away d) came

14. Put the right question to the sentence.

Lola wanted to help her best friend.

a) What did Lola want to do?

b) What did she want to help?

c) What did she help?

d) What did she do?

15. Mark got a bad mark and this ___ her mother very angry.

a) makes b) made

c) did d) was

16. I was busy at 7 p.m. last Sunday, …

a) I did my homework b) I was full

c) I was sleeping d) I was working on the computer

17. Find the right question.

-Yes. They were cleaning the house at that time.

a) What did Mary and Tom do?

b) What were they doing?

c) Were they busy at that time?

d) Were they cleaning the classroom?

18. Last Sunday we wanted to watch TV, suddenly our granny ____

a) phoned us b) was phoning

c) phones d) us phoned

19. Find only verbs.

a) smile, angry, tasty

b) to tasty, to be angry, to smile

c) run back, to be, to smile

d) better, to like, ground

20. Find the nouns with “much”

a) money, traffic, jam

b) traffic, TVs, get

c) mornings, bread, rice

d) nouns, water, lemonade

21-25 Remember the fairy tales

Answer the questions

21. Mowgli lived in the ____

22. Gerda’s favourite flower was ____

23. Where did Thumbelina live? ____

24. Daddy bear, Mummy bear and Baby bear liked ___. And they ate it in the morning.

25.What bird did save the human baby? _____

7 лет назад

Предмет: Математика, автор: ominaabdukadirova860

задание на фото, нужно 4 и 5 задание!!..

7 лет назад

Предмет: Алгебра, автор: Marina1si

Составить 5 квадратных уравнений по теореме Виета)

10 лет назад

Предмет: Математика, автор: Аноним

Решите срочно интеграл с решением
$intlimits frac{e^{4x}}{ e^{x} -1} dx$

10 лет назад