Consider the reaction na + (g) + cl - (g) → nacl (s). if the temperature is lowered, what is favored? 1. products 2. reactants

Answer is: 1. products (NaCl (s)).

This reaction is exothermic, which means that heat is released. According to Le Chatelier's principle when the reaction is exothermic heat is included as a product and when the temperature decreased, the heat of the system decreases, so the system consume shifting the equilibrium to the right, producing more sodium chloride.