Предмет: Химия, автор: justhatiko

Срочно!!!даю 50 балов на поверхни срибних выробив з часом зявилося налёт чорний ? Чому ?

Ответы

Автор ответа: DepsCian

На поверхні срібних виробів з часом може з'явитися наліт чорного кольору. Це може бути спричинено хімічними реакціями срібла з іншими речовинами, такими як киснь у повітрі.

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Физика, автор: vitaliikrutous

Поможіть пж срочно даю 40 балів

1 год назад

Предмет: Українська мова, автор: 3463637

Перебудуйте подане речення на речення з прямою мовою: Сова сказала, що її діти найкращі!

1 год назад

Предмет: Геометрия, автор: elizavetazubenko67

ДАЮ 20 БАЛЛОВ
Дано точки А (-6; 5; 8) і В (4; 1; -5). Знайдіть коордивата середини відрізка АВ та його довжину.

1 год назад

Предмет: Английский язык, автор: ayyyy41

Яка тканина забеспечуе ріст у висоту?

7 лет назад

Предмет: Английский язык, автор: Demon137

СРОЧНО! ПОМОГИТЕ ПЖ С АНГЛИЙСКИМ! Will be or going to.
'Will' or 'be going to'?
Put the verb into the correct form

1) Do you think that the biology test ________ (be) very difficult?
( ) will be
( ) is going to be
( ) shall be
( ) are going to be

2) I know that Mark is ill and I _________ (visit) him tomorrow morning.
( ) am going to visit
( ) will visit
( ) shall visit
( ) is going to visit

3) I've noticed that she was angry at me so I _________ (talk) to her soon.
( ) am going to talk
( ) will talk
( ) is going to talk
( ) won talk

4) Oh, you're sick. I _______ (go) to the pharmacy and get you some medicine.
( ) will go
( ) am going to go
( ) won't go
( ) is going to go

5) I think Jane ________ (not / speak) to him any more after what he did.
( ) won't speak
( ) am not going to speak
( ) is not going to speak
( ) will not be speak

6) Have you chosen a place for your holiday yet? Yes, we _________ (go) to Greece this year.
( ) are going to go
( ) is going to go
( ) will go
( ) shall go

7) She knows he phoned her again but she _________ (phone) him back.
( ) isn't going to phone
( ) aren't going to phone
( ) will phone
( ) shall phone

8) Why did she hoover the whole flat? _________ (she / have) guests tonight?
( ) Is she going to have
( ) Are she going to have
( ) Will she going to have
( ) Will she have

9) That window is too high. She won't reach it. _______ (you / give) her a hand, please?
( ) Will you give
( ) Are you give
( ) Are you going to give
( ) Will give you

10) What about your new job offer? Oh, I've made a decision. I ________ (not / take) it.
( ) am not going to take
( ) am going to take
( ) will not take it
( ) won't be taking it

7 лет назад