Предмет: Химия, автор: bsa197878

Помогите Пожалуйста, нужно сделать что обведено красным

Приложения:

Ответы

Автор ответа: Dakonsk1

Fe3O4 + 4H2 → 3Fe + 4H2O

NiO + H2 → Ni + H2O

Cr2O3 + 3H2 = 2Cr + 3H2
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