August 2022 1 23 Report
Определи, какое из утверждений верно для реакции:

4Al + 3O2 = 2Al2O3 + Q

- Из окружающей среды поглощается тепло

- Все варианты подходят

- Количество теплоты в окружающей среде до и после реакции не изменяется

- Реакция экзотермическая
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