Предмет: Химия, автор: sofliss

визначте їх валентність
А) Cu2O, Fe2O3, HgO

Ответы

Автор ответа: christa14

1

Cu(|) O(||)
Fe(|||) O(||)
Hg(||) О(||)

sofliss: ♡︎♡︎♡︎♡︎♡︎♡︎

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