What is the appropriate reaction intermediate or transition state (whichever is applicable) for this reaction? O [] H **** H NaOCH3 OCHS

Which reaction pathways shows the effect a catalyst (black) might have on an uncatalyzed reaction (gray)? O al O b) Od HAL O el mart Reaction pa Reaction path d) Both B and C are possible Ropath

4. Consider the following reaction mechanism and answer the questions. H-Br CH2 -CH3 -CH3 -CH3 Br Br Product B Br, Br Product A -CH3 a) Which product is most stable, label the kinetic and thermodynamic products? b) Which would have a higher energy of activation for the step leading to the kinetic or thermodynamic product (second step)? c) Sketch a reaction coordinate representing the above mechanism assuming the first step is the rate determining step. Include both pathways, label reactant, products, energy of activation and energy of reaction for the thermodynamic product. Reaction Coordinate Free Energy

Draw a detailed reaction coordinate diagram for the reaction. Include transitions states and/ or intermediates that are formed