Предмет: Химия, автор: Zikk21

Какие из реакций относятся к окислительно восстановительными?
Ответ обоснуйте
а) KOH + SO2---> K2SO3 + H2O
Б) Al+O2 -->Al2O3

Ответы

Автор ответа: naugros
0


       0           0       +3 -2
Б)  4 Al+3O2 -->2Al2O3
0       -3e             +3
Al----------------    Al     3           4        восстановитель  
0  +2e*2      -2                 12
O2-----------2O           4           3      окислитель
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