solutions of calcium chloride and silver nitrate react to form calcium nitrate and silver chloride precipitate. In a particular experiment, the reaction of 2.5g calcium chloride react with 10.0g of silver nitrate. Identify the excess reactant and the calculate the number of cations and anions

Ca Cl2 (aq) + 2AgNO3 (aq) -> Cu(NO3)2(aq)+2 AgCl(s)