Определить неизвестную валентность элемента:
[tex]Fe_{2}O_{3}[/tex]
[tex]Mn_{2} O_{5}[/tex]
[tex]CO[/tex]
[tex]ZnCl_{2}[/tex]
[tex]Fe_{2}O_{3}[/tex]
[tex]Mn_{2} O_{5}[/tex]
[tex]CO[/tex]
[tex]ZnCl_{2}[/tex]
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Ответ:
Fe2O3 Fe(III) O(II)2
Mn2O5 Mn(V) O(II)
CO C(II) O(II)
ZnCl2 Zn(II) Cl(I)