$$CoCl_2(aq) + 2AgNO_3(aq) → Co(NO_3)_2(aq) + 2AgCl(s)$$
In this reaction, cobalt(II) chloride and silver nitrate react to form cobalt(II) nitrate and silver chloride. The reaction is a double displacement reaction, in which the cations and anions of the two compounds switch places.
