# Dissociation of silver chloride in a solution

When silver chloride is exposed to light it can dissociate to silver metal and atomic chlorine. It might be a silly question, but could the chlorine go back into the solution as chloride ions ? if so is this likely to occur? does the outcome change if the solution is being boiled? Thanks!

The answer is yes and no. Silver chloride doesn't "dissociate", it decomposes into silver metal and dissolved chlorine. The chloride reacts with the water to form hydrochloric acid and hypochlorous acid as shown below: $$\ce{2AgCl_{(s)} +H_2O_{(l)} ->[h\nu] 2Ag_{(s)} + Cl_2_{(aq)} +H_2O_{(l)}->2Ag_{(s)} + HCl_{(aq)} + HClO_{(aq)}}$$