Aluminium is higher is the reactivity series than silver thus it is able to replace the silver thus bonding with the chloride ion.
[tex]Al_{(s)} + 3 AgCl_{(aq)} ------\ \textgreater \ AlCl_{3} _{(aq)} + 3 Ag_{(s)} [/tex]
∴ the products are solid silver and aqueous aluminium chloride
