2+ + 6 NH3 → 2+ + 6 H2O The proton (H+)  is one of the strongest but is also one of the most complicated Lewis acids.
2+ + 6 NH3 → 2+ + 6 H2O Proton (H+) je jedna od najjačih ali takođe i jedna od najkomplikovanijih Luisovih kiselina.