Помогите пожалуйста очень срочно нужно 2CH4--650°C--> X+ 2H2 Определите Х А) - №28663304

Помогите пожалуйста очень срочно нужно
2CH4--650°C--> X+ 2H2
Определите Х
А) пропан
В) этан
С) пропилен
Д) ацетилена
Е) этилен
- Предмет:
  Химия
- Автор:
  danica
- 6 лет назад

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My Future Profession
Centuries ago there were only a few jobs. People were farmers, bakers, butchers or salesmen. Today there are thousands of different kinds of jobs, and new ones are constantly appearing. And the problem of choosing the future profession has always been very important and difficult matter because it determines our future life in many ways. It is one of the most important decisions for every person.
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