11. Draw the two chair conformations for 1-bromocyclohexane. Explain which is more stable, using Newman projections to support your answer. 12. Draw the most stable chair conformation for the following molecules: a. trans-1,2-dimethylcyclohexane b. trans-1-isopropyl-3-methylcyclohexane 13. Consider the following molecule 12. a. Which of the labeled bonds in the structure are equatorial bonds? b. Which of the labeled bonds is trans to bond b? a c. Which bonds have a 1,3-diaxial interaction with each other