Предмет: Химия, автор: user1760

Дофамин C8H11NO2
C
8
H
11
NO
2
известен, как правило, под названием гормона радости. Он отвечает за чувства удовольствия и наслаждения, улучшает работу мозга, вызывает повышенный интерес к жизни.

Вычислите в процентах массовую долю водорода в дофамине. В ответ запишите число с точностью до десятых.

Ответы

Автор ответа: ProROOk256

0

Ответ:

20.9

Объяснение:

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: EeOneGyu111

2

Укажи неверное утверждение.

1)

пищать – 1 спр.

2)

вертеть – 2 спр.

3)

возить – 2 спр.

4)

читать – 1 спр.

1 год назад

Предмет: Английский язык, автор: vicka678

Answer the questions. 1.how do you prefer to travel - by air, by sea or by land-and why?
Номер 76

1 год назад

Предмет: Английский язык, автор: vvolkova

Помогите пожалуйста выбрать нужное слово
1. Helen has to work (late/lately) tonight. 2. Life on the farm was (pretty/prettily) hard. 3. The card allows you to travel (free/freely) hard. 4. It took (near/nearly) two hours to reach the place. 5. The accident happened (short/shortly) before midday. 6. The detective was watching him )close/closely) waiting for a reply. 7. The idea is now )wide/widely) accepted. 8. Don't sit too (near/nearly) to the screen. 9. All citizens can now travel (free/freely) among member states. 10. I was halfway through my explanation when Jack cut me (short/shortly). 11. The museum is (easy/easily) accessible by car. 12. His eyes were (wide/widely) open. 13. The birthday catd arrived three days (late/lately). 14. Go (easy/easily) on her, she's having a really hard time at the moment. 15. Better (late/lately), than never. 16. Things have been going (bad/badly). 17. I don't understand why she spoke so (rude/rudely). 18. I know him (fair/fairly) well, but i wouldn't say we were (real/really) close friends. 19. She has been acting very (strange/strangely) (late/lately). 20. Open the window (wide/widely). It's stuffy in here. 21. His (clumsy/clumsily) fingers couldn't untie the knot. 22. Parents must be (firm/firmly) with their children. 23. Don't be too (hardly/hard) on him. He is very young. 24. His teachers think very (high/highly) of him. 25. They were (warm/warmly) dressed in coats and scarves.

1 год назад

Предмет: Русский язык, автор: мии12

помагите пж......... Упр: 8

8 лет назад

Предмет: Математика, автор: marinalutik63

Найдите значение выражения:
15:(3 12/17 + 2 5/17) + (4,2- 2 3/ 5) : 4
Срочно пожалуйста!

8 лет назад