Предмет: Химия, автор: Verosvarhik

СРОЧНО ПОЖАЛУЙСТА!!Определите тип реакции: соединение, разложение, замещение, обмен 1.Fe+HCl→FeCl2+H2
2. NH3→N2+H2
3. Fe+Cl2→FeCl3
4. N2+O2→NO
5.C3H8+O2→CO2+H2O
6. Al+Cl2→AlCl3
7. Fe2O3 + H2= Fe + H2O
8.Zn + HCl = ZnCl2 + H2
9. Fe(OH)2 + O2 +Н2О → Fe(OH)3
10. H2SO4+AlàAl2(SO4)3+H2
11. С2Н6О + О2 → СО2 + Н2О
12. Al(OH)3àAl2O3+ Н2О
13. С6Н6 + О2→CO2+H2O

Ответы

Автор ответа: spulinonik
2

Ответ:

1 замещение

2 разлож

3 соед

4 соед

5 соед

6 окисления

7соед

8соед

9соед

10соед

11соед

12 разлож

13 соед

13 замещение

14 соед


Verosvarhik: Ты уверен(а) что тут так много соединений?
spulinonik: да, проверил
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Ancient Olympic

Probably the greatest honour 1 that can come to an athlete is to win gold
at the Olympic Games. But did you know that the idea of having Olympic Games is more than 2,500 years old?
A Greek legend says that it was Hercules son of Zeus,
who started Olympic Games. The earliest Olympic records [ˈrekɔ:dz] we
know about go back to the year 776 BC. The Greeks had the Games
once in every four years for more than 1,000 years, until the Romans
stopped them in 394 AD.
The ancient Greeks believed the Games so important that they measured
time by them. They called the four years an Olympiad. The Games were
an example of the Greek idea that people should develop their bodies as
well as brains. Nothing was serious enough to stand in the way of the
Games. If a war was going on in the country, they stopped the war, not
the Games.
The ancient Olympics had only one athletic competition — a running
race of about 183 metres (the length of the stadium). Only men could
take part in the Games. The powerful Spartans changed the programme
and included more sports in it. The winners of the Games became heroes in the country.
Задание под В:
Read the text again and make up questions to match the answers. 
Answers:
1) More than 2, 500 years old.
2) In Ancient Greece.
3) Every four years.
4) The Romans did.
5) To develop their bodies
6) It was a running rase.
7) No, they didn't. 
8) The winners did.