Answer : The reaction that will occur when you combine the aqueous solutions of copper nitrate with nickel chloride is a displacement reaction.
It explained below with the reaction :-
Explanation : [tex]Cu(NO _{3}) _{2} _{(aq)} + NiCl _{2} _{(aq)} ----\ \textgreater \ CuCl _{2} _{(s) } + Ni(NO _{3}) _{2}_{(aq)} [/tex]
The reaction will give the major product as copper chloride in the form of solid. Rest all the ions will remain in the aqueous form.