Предмет: Химия, автор: viktoriaborshchevska

Розвязати окисно-відновну реакцію, вказати окисник і відновник
Cr+H2SO4 ⇒Cr2(SO4)3 + SO2 + H2O

Ответы

Автор ответа: viskoni7
1

Ответ:

2Cr+6H2SO4 ⇒Cr2(SO4)3 + 3SO2 + 6H2O

Объяснение:

Cr⁰ -3e ⇒ Cr⁺³ восстановитель  2

S⁺⁶ +2e ⇒ S⁺⁴ окислитель           3

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