Предмет: Химия, автор: zatsarynskadiana

Встановіть відповідність між формулою сполуки та валентністю елемента у оксиді:
*
I II III IV V VI VII
WO3
Co2O3
V2O5
Ag2O
SnO2
Cl2O7
WO3
Co2O3
V2O5
Ag2O
SnO2
Cl2O7

Ответы

Автор ответа: talianaburayk

0

Ответ:

помогитеееееееее... ....... ....

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