Question

Определить валентность и степень окисления кобальта

Answer 1

Co(кобальт) валентность VIII, степень окисления +2.

Answer 2

Valence and Oxidation State of Cobalt

The valence and oxidation state of cobalt can vary depending on the compound or molecule it is present in. Cobalt commonly exhibits two main oxidation states: +2 and +3.

In the +2 oxidation state, cobalt forms compounds where it has lost two electrons. Examples of compounds with cobalt in the +2 oxidation state include FeO (iron(II) oxide), Fe(OH)2 (iron(II) hydroxide), and Fe(+2) (ferrous ion).

In the +3 oxidation state, cobalt forms compounds where it has lost three electrons. Examples of compounds with cobalt in the +3 oxidation state include Fe2O3 (iron(III) oxide), Fe(OH)3 (iron(III) hydroxide), and Fe3+ (ferric ion).

It's important to note that cobalt can also exhibit other oxidation states, but the +2 and +3 states are the most common.

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