Предмет: Химия, автор: Katya09123

Br2 -HBr- CuBr2- Cu(OH)2 -осуществить превращение
ПОМОГИТЕ

Ответы

Автор ответа: dec77cat
0
Br₂ + H₂ (t)= 2HBr

(CuOH)₂CO₃ + 4HBr = 2CuBr₂ + CO₂↑ + 3H₂O

CuBr₂ + 2NaOH = Cu(OH)₂↓ + 2NaBr
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: Rudywoody
а*b=38720.НОД(а,b)=44.Найдите НОК(а,b).
5 лет назад
Предмет: Математика, автор: danyalom
Найди наиболтший общий делитель 60 и 32​
5 лет назад
Предмет: Английский язык, автор: samigullinadana
Pre-Intermediate Test

Choose the correct answer, a, b, c, or d.

Example: What ___ at weekends?

a do you do b are you do c do you d you do



1 It ___ when they went out.

a rained b was raining c is raining d was to rain

2 Did you ___ TV last night?

a watch b see c look at d listen

3 That’s the hotel ___ we had lunch.

a what b where c that d which

4 Diana ___ some wine when she went to France.

a bought b buyed c boot d did buy

5 I don’t get ___ very well with my brother.

a by b from c on d to

6 Tom always ___ golf on Sundays.

a plays b play c to play d is plays

7 Mary ___ a key when she was cleaning her car.

a was finding b finded c founded d found

8 ___ I worked hard, I didn’t pass the test.

a Although b So c Because d But

9 My parents ___ to stay with us next week.

a comes b coming c is coming d are coming

10 Come on, it’s time ___.

a to go b going c we go d go

11 Can you look ___ my dog this weekend?

a with b away c up d after

12 Who ___ the answer to this question?

a knows b know c does know d does knows

13 When I got to work I remembered that ___ my

mobile at home.

a I’d leave b I was leaving c I’d left d I left

14 My father ___ be a builder.

a used to b was c use to d did use to

15 I haven’t tidied my office ___.

a just b already c yet d since

16 I can sing, but not as ___ as my sister.

a well b good c best d better

17 That’s my money! Give ___!

a back b it back c back it d it

18 Richard isn’t very good ___.

a to dance b at dancing c dancing d dance

19 I’m sure Canada isn’t as big ___ Russia.

a as b than c to d like

20 It’s important ___ too much alcohol.

a not to drinking b not to drink c not drink d not drinks

21 We ___ take a map.

a should b should to c might to d might

22 ___ dinner in a restaurant today.

a I have b I having c I’m having d I’m to have

23 Cameras aren’t allowed here – you ___ take photos.

a mustn’t b don’t have to c must not to d have to

24 Pam ___ eat cheese, but she does now.

a didn’t used to b did use to c didn’t use to d wasn’t to

25 We ___ late and the game had already started.

a arrived b had arrived c didn’t arrive d were arriving

26 Your diet is terrible. You don’t eat ___.

a many vegetables b enough vegetable

c vegetables enough d many vegetable

27 If we had the money, we ___ get a taxi.

a will can b can c would can d could

28 ___ my best friend since 1999.

a I’ve known b I knew c I’m knowing d I know

29 You ___ the new café in town. The coffee’s terrible.

a aren’t like b won’t like c isn’t like d won’t liking

30 There’s always a lot of traffic going ___ the bridge.

a over b in c at d through

31 This road was built ___ the Romans.

a of b for c by d with

32 Michelangelo ___ some of his best works in Rome.

a painted b was painted c is painting d has painted

33 You eat ___ chocolate – you really should give up.

a too much b enough c very many d much

34 How ___ your name?

a is it pronounced b you pronounce

c do you pronounce d to pronounce

35 I ___ come to the party tonight.

a might not b don’t might c don’t to d not

36 I’m really tired – I only got ___ hours’ sleep.

a not many b a few c a little d few

37 Your papers are on the floor. Why don’t you ___?

a pick them up b pick up them

c pick up to them d pick them

38 If you take your time, ___ the right decision.

a you make b you’d make c you’ll make d you’re making

39 I ___ the museum because I hadn’t brought a map.

a couldn’t find b couldn’t to find c can’t find

d hadn’t found

40 She told me ___ number, but I can’t remember it.

a my b his c her d hers

​
5 лет назад
Предмет: Математика, автор: Учусь111
Запишите числа в порядке возрастания 499 27 172 63 345 23 1537 234 в дробях
9 лет назад
Предмет: Математика, автор: serdtselvitsy
В первый день автотуристы были в пути 6 часов. А во второй день 4 часа. Всего они проехали путь длиной 600 км. Какой длины путь проезжали туристы каждый день? Если ежедневно они проезжали с одной скоростью. Помогите пожалуйста решить.
9 лет назад