Propane gas, C3H8, is a common fuel for barbecue grills. Propane combusts according to the reaction below: C3H8 (g) 5 O2 (g) −−→ 3 CO2 (g) 4H2O (l) If 100. g of C3H8 reacted with 100. g O2, how many grams of CO2 would be formed?