Предмет: Химия, автор: egorsaraev364

Определите степень окисления элементов в соединениях
Na2Cr2 O7 KNO3 H3PO4. Помогите мне пожалуйста!

Ответы

Автор ответа: darinaaa07
0
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darinaaa07: С.о.-степень окисления
Na2Cr2-с.о. Na(+1),c.o. Cr(-1)
O7-c.o. O(-2)
KNO3-c.o. K(+1),c.o. N(+5),c.o. O(-2)
H3PO4-c.o. H(+1),c.o. P(+5),c.o. O(-2)
egorsaraev364: Спасибо!)
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