Составьте реакцию Ca+H3PO4 - №24622238

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Ca+H3PO4
- Предмет:
  Химия
- Автор:
  camacho
- 5 лет назад

Ответы 1

Тип:Замещение3Ca+2H3PO4=Ca3(PO4)2+3H2
- Автор:
  amari
- 5 лет назад
- 0
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Checking work №4 (IV-th term)

Fill in the gaps with the preposition on, at, in, of, to.

Pushkin was born ___ June 6th, 1799 ___ Moscow.

The tsar sent him ___ southern Russia.

Lomonosov was the son ___ a poor fisherman.

We got up ___ 7 in the morning and hurried ___ the station.

___ the country side is beautiful.

We arrived ___ town late ___ night.

___ Sunday we decided to go ___ the countryside.

Write these dates in words.

1996 _nineteen ninety-six_______________________________________________________________

2000 _______________________________________________________________________________

1741 _______________________________________________________________________________

1900 _______________________________________________________________________________

1905 _______________________________________________________________________________

2013 _______________________________________________________________________________

Fill in the gaps with the correct form of the verb using Present Simple or Present Continuous.

Trevor and Robert (talk) now. __Trevor and Robert are talking now._________________________

I never (go) to the cafe. _____________________________________________________________

Sometimes he (watch) TV in the morning. ______________________________________________

At the moment we (cook) dinner. _____________________________________________________

I (phone) my mother now. ___________________________________________________________

We never (start) school at 7 o’clock. ___________________________________________________

My brother (listen) to music at the moment. _____________________________________________

We often (play) chess in the evenings. _________________________________________________

Give short answers to the questions.

Was he Russian? _Yes, he was._______________________________________________________

Were Gagarin and Tereshkova Russian? ________________________________________________

Was Churchill British? _____________________________________________________________

Are you cooking now? _____________________________________________________________

Is there an apple on the table? ________________________________________________________

Can you fly? _____________________________________________________________________

Do you like ice-cream? _____________________________________________________________

Did you watch the film yesterday? ____________________________________________________

Rewrite the sentences using Passive Voice.
The boy broke the window. - __The window was broken by the boy.__________________________

The girl waters the flowers. - _________________________________________________________

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Nevita published the article. - ________________________________________________________

Paul does his homework every day. - __________________________________________________

Complete the sentences.
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If I were you, I’d __________________________________________________________________

If I were rich, I’d __________________________________________________________________

If I lived in England, I’d ____________________________________________________________

If I could fly, I’d __________________________________________________________________

If I were a fairy, I’d ________________________________________________________________
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