6 HNO3 (aq) + 2 Al (s) → 2 Al(NO3)3 (aq) + 3 H2 (g)
This is an oxidation-reduction (redox) reaction:
6 HI + 6 e- → 6 H0 (reduction)
2 Al0 - 6 e- → 2 AlIII (oxidation)
HNO3 is an oxidizing agent, Al is a reducing agent.
Reactants:
- HNO3 – Nitric acid
- Other names: Aqua fortis , Spirit of niter , Eau forte
- Appearance: Colorless, yellow or red fuming liquid ; Colourless-to-yellow liquid with pungent odour ; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]
- Al
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