12.04.2022

Напишите уравнения реакций, с помощью которых можно осуществить цепочку превращений веществ: Сероводород → Оксид серы (IV) → Оксид серы (VI) → Серная кислота → Сульфат меди (II). К уравнениям окислительно-восстановительных реакций составьте схему электронного баланса.

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Химия

Ответ учителя по предмету Химия

2H2S + 3O2 = 2SO2 + 2H2O

O⁰ + 2e = O
⁺²

2SO2 + O2 = 2SO3

SO3 + H2O = H2SO4

H2SO4 + CuO = CuSO4 + H2O

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