Use your knowledge of the collision theory and use the potential energy diagram given to answer questions 1 through 5. 1)Which letter represents the activation energy?
2)What is represented by the letter "b"?
3)what amount of energy is absorbed in the completion of the forward reaction?
4)Which letter would not be affected by the addition of catalyst?

4al + 3o2 → 2al2o3 what does the "3" in front of o2 stand for? a) it indicates that there are 5 oxygen atoms after you add the coefficient and the subscript. b) it indicates that that there are are total of 6 oxygen atoms all bonded together as a single molecule. c) it indicates that there are 3 oxygen molecules chemically bonded to each other in the reaction. d) it indicates that there are 3 separate oxygen molecules in the reaction.