$$4Ag(s) + O_2(g) + 2H_2O(l) → 4AgOH(s)$$
In this reaction, silver (Ag) metal reacts with oxygen (O2) gas and water (H2O) to form silver hydroxide (AgOH), a compound that is insoluble in water and forms a protective layer on the surface of the metal, preventing further corrosion.
