The major source of aluminum in the world is bauxite (mostly aluminum oxide). Its thermal decomposition can be represented by: 2Al2O3 (s) = 4Al (s) + 3O2 (g) deltaHrxn = 1676 kJ. If aluminum is produced this way, how many grams of aluminum can be formed when 1.000 x 10^6 J of heat is transferred?