7) When each of the following processes reach equilibrium, does the system in question contain mostly reactants, mostly products, or fairly equal concentrations of both reactants and products? Justify your answers. a. 2H2(g)+O2(g)2H2O(g) Kc=9.11080 at 25C b. H2(g)+Br2(g)2HBr(g) Kc=1.41021 at 25C