Leveling the reaction of oxidation of cobalt with concentrated nitric acid, taking into account that a salt of trivalent cobalt is formed
Cobalt is designated as Co. Nitric acid is designated as HNO3. We compose a chemical equation balancing it according to the valence of the substances:
3Co + 8HNO3 → 3Co (NO3) 2 + 2NO + 4H2O.
Cobalt (II) nitrate is formed, which precipitates, nitric oxide (II) and water.
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