In a solvolytic reaction, the solvent molecule reacts with the solute in a manner that the solvent molecule is split into two parts, a part of which gets attached to the solute molecule. In this manner, solvolytic reactions lead to the increase in concentration of one of the solvent ions. The terms hydrolysis ammonolysis are applied to solvolytic reaction in water and ammonia, respectively. Some examples are:
                           H₂O
SO₂CI₂  + 4H₂O  →     SO₂(OH)₂  +  2H₃O⁺  +  2CI^-          (Hydrolysis)
                                                                 (concentration of
                          liq NH₃                           H₃O⁺ is increated)
SO₂CI₂ + 4NH₃   →      SO₂ (NH₂) + 2 NH₄⁺ + 2CI          (Ammonolysis)
                                                                  (concentration of
                                                                   NH₄⁺ is increases)
                             liq NH₃
     SiCI₄ + 8NH₃    →         Si(NH₂)₄ + 4H⁺ + 4CI^-
                                 HF
         TiCI₄ + 4HF    →         TiF₄ + 4H⁺ +  4CI^-
                          liq. SO₂
       PCI₅ +SO₂       →         POCI₃ + SO²⁺ + 2CI^-
                           liq. SO₂
         UCI₆ + 2SO₂   →         UO₂CI₂ + 2 SO²⁺ + 4CI^-

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