1.К 150 г 5% раствора соли добавили ещё 15 г соли. Массовая доля соли в полученном растворе - №24790581

1.К 150 г 5% раствора соли добавили ещё 15 г соли. Массовая доля соли в полученном растворе составляет,%?
Ответ:13,6
Решение надо с дано.
- Предмет:
  Химия
- Автор:
  moocherhuang
- 5 лет назад

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II. Writing

Choose the correct answer.

When Jake (1) ............. the door, he knew someone (2) ............. in the house. Things were different. Earlier that morning, he (3) ............. a man standing outside, and now he wondered if this man (4) ............. for him to leave the house. Jake went into the kitchen. The window was open. He was sure he (5) .............it earlier. Next, he went into the garden. Jake knew something very strange (6) ............. on. He went back into the house. He had just got to the top of the stairs (7) ............. he heard a noise coming from the bedroom. Slowly, he opened the door and there, lying in the middle of the bed, was his sister! She (8) .............! Jake was very relieved.

1

A has opened

B opens

C opened

2

A had been

B is

C has been

3

A was seeing

B had seen

C has seen

4

A is

B waited

C had been waiting

5

A had closed

B was closing

C had been closing

6

A was going

B went

C have been going

7

A after

B when

C while

8

A was sleeping

B slept

C had slept
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