Balance this equation and then answer the questions. Cl2 + KBr → KCl + Br2

Balance this equation and then answer the questions. Cl2 + KBr → KCl + Br2.
a. You found the formula mass and the molecular mass of the compounds in this reaction. Using your balanced equation, does the reaction follow the law of conservation of mass?
b. Write this equation as a sentence in two ways. First, describe the reaction in terms of molecules, then describe the reaction in terms of moles.