Выполни задание

Определи валентность элементов в соединениях и выбери её над элементами.

[ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ][ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ]

\(\mathrm{H}\) \(\mathrm{Cl}\)

[ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ][ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ]

\(\mathrm{Cu}\) \(\mathrm{O}\)

[ \(\text{II}\) | \(\text{IV}\) | \(\text{VI}\) ][ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ]

\(\mathrm{S}\) \(\mathrm{O\_3}\)

[ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ][ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ]

\(\mathrm{Fe\_2}\) \(\mathrm{O\_3}\)

[ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ][ \(\text{II}\) | \(\text{I}\) | \(\text{III}\) ]

\(\mathrm{Al\_2}\) \(\mathrm{O\_3}\)