NH₄⁺ + Zn + 2 MnO₂ → Mn₂O₃ + (Zn)²⁺ + OH^- + NH₃

This is an oxidation-reduction (redox) reaction:

MnO₂ is an oxidizing agent, Zn is a reducing agent.

Reactants:

• NH₄⁺ – Ammonium , Azanium
  • Other names: Ammonium cation , NH4 , NH4+ ... show moreNH4(+) , Ammonium(1+) , [NH4](+) , Ammonium ion show less
• Zn
  • Names: Zinc , Zinc powder (pyrophoric) , Zn ... show moreElement 30 , 30Zn , Cinc , Zink , Zn(ii) , Zn2+ , Zincum , Blue powder , Merrillite show less
  • Appearance: Grey-to-blue powder
• MnO₂ – Manganese oxide , Manganese(IV) oxide
  • Other names: Manganese dioxide , Pyrolusite , Hyperoxide of manganese ... show moreBlack oxide of manganese , Manganic oxide , MnO2 , MnO₂ , Manganese(IV)oxide , Manganese peroxide show less
  • Appearance: Brown-black solid ; Black-to-brown powder

Products:

• Mn₂O₃
  • Names: Manganese(III) oxide , Dimanganese trioxide , Manganese sesquioxide ... show moreManganic oxide , Manganous oxide show less
  • Appearance: Brown or black crystalline
• Zn²⁺
• OH^- – Hydroxide
  • Other names: Hydroxide ion
• NH₃
  • Names: Ammonia , Azane (only intended for use in naming derivatives of ammonia) , Hydrogen nitride ... show moreAmmonia (anhydrous) , Azane , NH3 , Trihydrogen nitride , R717 , Refrigerant gas 717 , Anhydrous ammonia , Aqua ammonia , Aqueous ammonia , [Note: Often used in an aqueous solution.] show less
  • 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.]