Physics and chemistry of a dry cell battery

   Outer layer: Zinc                           Middle layer: Ammonium Chloride                       Inner layer: Manganese Dioxide                       Carbon Rod            WaveGuide(wire) Zn(s) → Zn2+(aq) + 2 e-           2 e-  + 2NH4+(aq) → 2NH3(aq) +  H2(g)       H2(g) +  2MnO2(s)→ Mn2O3(s) + H2O(l)          2e-                   Read more…