Write a balanced half-reaction describing the reduction of aqueous chromium(IV) cations to solid chromium.

Chemistry

1 answer:

Aliun [14]4 years ago

3 0

The balanced half-reaction: Cr⁴⁺(aq)+ 4e⁻ → Cr(s).

<span> Chromium(IV) cations gain four electrons and became solid chromium with neutral charge.
</span>Reduction is lowering oxidation number because element or ions gain electrons.

Oxidation reaction is increasing of oxidation number of element, because element or ion lost electrons in chemical reaction.

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