Предмет: Химия, автор: Бубля

Срооочно! Помогите. 10 класс.
Как из С6Н4 получить С2Н2?

Ответы

Автор ответа: MENделеев
0
Нет такого соединения - C6H4.
Автор ответа: Бубля
0
Тогда, может, С4H6? Из него возможно получить С2Н2?
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"I usually get up at about 8 o'clock. Then I have breakfast – coffee or tea and some toasts. After this I go down to the library and read the paper. There are a lot of us at the library. We never say we are unemployed but we know. I look at all the possible jobs in the papers (This takes about a minute!). I read the sports and the arts pages, and soon it is time for lunch, so I go off down to the shops for bread, milk, fresh vegetables and 25 pence worth of cheese. I like shopping, and I like cooking now too. On the way back from the shops I buy a local paper and look at the jobs advertisements over lunch (soup and bread and butter).

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2. What time ...? At eight o'clock.
3. What...? Coffee or tea, and toast.
4. Where …? To the library.
5. Why…? Because I want to read the papers.
6. Which parts …? The job advertisements, the sports ads, arts
pages.
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8. What …? Usually I have soup and bread and butter.
9. What...? I go to a carpentry class.
10. When …? On Monday and Wednesday afternoons.
11. What …? I go for a walk or read.
12. When …? At about six.
13. What …? Talk, play games or read.
14. Do …? No, not much.
15. When …? At about 10:30.
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