напишите формулы гидроксидов, соответствующих оксидам формулы которых Cr2O3 Cro Sio2

как регулируется работа органов дыхания?

Write a sentence with If... for each situation.

1) He doesn't speak very clearly - that's why people don't understand him.

If he ... more..., people...

2) That book is too expensive, so I'm not going to buy it.

If the book ..., I ...

3) We don't go out very often because we can't afford it.

4) It's raining, so we can't have lunch in the garden.

5) I have to work tomorrow evening, so I can't meet you.

46,73х+53,27х=268,05

Тема: Генетическая связь между основными классами неорганических соединений. P - P2O5 - H3PO4 - Li3PO4 Составьте 3 пункта.