NO₂^- + NH₄⁺ → N₂ + 2 H₂O

This is an oxidation-reduction (redox) reaction:

NH₄⁺ is a reducing agent, NO₂^- is an oxidizing agent (synproportionation (comproportionation)).

Reactants:

• NO₂^- – Dioxidonitrate(1−)
  • Other names: Nitrite , Nitrite ion , NO2(-) ... show more[NO2](-) , Nitrit , Nitrous acid, ion(1-) , Nitrite anion , Nitrite(1-) , NO2 , Nitrogen peroxide ion , Nitrogen dioxide , Nitrogen dioxide ion show less
• NH₄⁺ – Ammonium , Azanium
  • Other names: Ammonium cation , NH4 , NH4+ ... show moreNH4(+) , Ammonium(1+) , [NH4](+) , Ammonium ion show less

Products:

• N₂
  • Names: Dinitrogen , Nitrogen (compressed gas) , Nitrogen (liquified) ... show moreN₂ , Nitrogen gas , N2 , Nitrogen , Diazyne , Liquid nitrogen , Nitrogen (refrigerated liquid) , Nitrogen (cryogenic liquid) show less
  • Appearance: Odourless colourless compressed gas ; Odourless colourless extremely cold liquid
• H₂O – Water, oxidane
  • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide ... show moreDihydrogen monoxide (DHMO) (systematic name) , Hydrogen monoxide , Dihydrogen oxide , Hydric acid , Hydrohydroxic acid , Hydroxic acid , Hydrol , Μ-oxido dihydrogen , Κ1-hydroxyl hydrogen(0) show less
  • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas