Cu(NO3)2 (aq) + NaCl (aq) + NO2 (l) + H2O (l) → CuCl (s) + NaNO3 (aq) + 2 HNO3 (aq)
This is an oxidation-reduction (redox) reaction:
CuII + e- → CuI (reduction)
NIV - 1 e- → NV (oxidation)
Cu(NO3)2 is an oxidizing agent, NO2 is a reducing agent.
Reactants:
- Cu(NO3)2 – Copper(II) nitrate
- NaCl – Sodium chloride
- NO2 – Nitrogen dioxide
- Other names: Nitrogen(IV) oxide , Deutoxide of nitrogen , Nitrogen peroxide
- Appearance: Brown gas ; Reddish-brown gas or brown or yellow liquid with pungent odour ; Yellowish-brown liquid or reddish-brown gas (above 70°F) with a pungent, acrid odor. [Note: In solid form (below 15°F) it is found structurally as N2O4.]
- H2O – Water, oxidane
Products:
- CuCl – Copper(I) chloride
- NaNO3 – Sodium nitrate
- 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.]