Предмет: Химия, автор: wadimmmm2009wadim

2. Складіть ОВР

Al2O3+H2 = H2O+Al

МЕБ:









3. Складіть ОВР



CH4 + 2O2 → CO2 + H2O

МЕБ:

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Ответы

Автор ответа: dyexfnf
2

Ответ:

Объяснение:

Al₂⁺³O₃ + H₂⁰ = Al⁰ + H₂⁺O

окисник      Al⁺³ + 3e = Al⁰  | 2 процес відновлення

відновник  H₂⁰ - 2e = 2H⁺  | 3 процес окислення

Al₂O₃ + 3H₂ = 2Al + 3H₂O

3.

С⁻⁴Н₄ + О₂⁰ = С⁺⁴О₂ + Н₂О

відновник  С⁻⁴ - 8 е = С⁺⁴      Ι 1  процес окислення

окисник     О₂⁰ + 4 е = 2О⁻²   Ι 2  процес відновлення

СН₄ + 2О₂ = СО₂ + 2Н₂О


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