How do I solve this?

Explanation:

a) Since this is a double displacement reaction, we write the balanced equation as

b) Next we find the number of moles of AgNO3 in the solution.

Next, use the molar ratio to find the necessary amount of CaCl2 to react with the AgNO3:

The volume of 0.500 M solution of CaCl2 necessary to react all of the given AgNO_3 is then

c) The theoretical yield can then be calculated as

Converting this amount of AgCl into grams, we get

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.