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81MrTNTminer81
28.10.2020 07:18

При сжигании 5,6 л (н. у.) ацетилена С2Н2 выделилось 324,8 кДж теплоты. Рассчитайте тепловой эффект реакции, уравнение которой

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Ответ:
НастяБушмакина
03.06.2020 06:38
John hasn't won a medal yet.
Have you ever climbed a mountain?
Tony hasn't tried kayaking yet.

1. Daniel has already seen that film.
2. We have not been kayaking yet.
3. Jane has not finished her homework yet.
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