Cr2O3 (s) + 2 NH3 (aq) → 2 Cr (s) + N2 (g) + 3 H2O (l)
This is an oxidation-reduction (redox) reaction:
2 N-III - 6 e- → 2 N0 (oxidation)
2 CrIII + 6 e- → 2 Cr0 (reduction)
NH3 is a reducing agent, Cr2O3 is an oxidizing agent.
- Names: Ammonia , Azane (only intended for use in naming derivatives of ammonia) , Hydrogen nitride
- Appearance: Colourless gas ; Colourless gas or compressed liquefied gas with pungent odour ; Colorless gas with a pungent, suffocating odor. [Note: Shipped as a liquefied compressed gas. Easily liquefied under pressure.]
- H2O – Water, oxidane