Two VSEPR diagrams for Molecule 1 are given below. They are conformational isomers or molecules that place atoms differently in space because of the rotation of a single bond. H H H:O H:O Conformer 1 H H H Ö: Conformer 2 3. (a) Can you “see” either of the two conformational isomers (Conformer 1 or Conformer 2) in the line drawing that you drew for Molecule 1? Explain your answer.

4. possible equatorial axial relationships for the cis and trans for the compound CH2CH3 CH Which is the conformer? Explain (in not more than two lines in your own words)

Perspective drawings of Chair and Boat Conformers fo Cyclohexane (C6H12). Note it is impossible to place all the carbons in the same plane without straining the bonds. Take two opposite carbons and pull both of them up to make one conformation adn then pull one of them down to make the other conformation.  Can you inercovert one conformer int othe other without breaking any bonds? Explain why these represent conformers and not isomers.

Consider 1,2-dimethylcyclohexane.Q: Draw the two possible chair conformations for the cis isomer. Which conformation, if either, is more stable?

Classify the pairs of molecules as not the same molecule, structural isomers, diastereomers, enantiomers or identical. Circle any molecules that are not achiral (a) (b) (c) Br... H CI H H Br H H3C Br H. CI Br H Br CI I I Br" "H H Br H CH3 Cr Br

It is easy to imagine a cyclohexane as a flat hexagon and a lot of the time we draw it that way. Looking at 1,3,5-triethylcyclohexane we cannot tell the stability of the molecule from looking at the flat 2D drawing. Explain why we need to look at the 3D configuration and what conformation (axial,equatorial) would each of the three ethyl groups be in for the most stable configuration.

There are four cis,trans isomers of 2-isopropyl-5-methylcyclohexanol:(a) Using a planar hexagon representation for the cyclohexane ring, draw structural formulas for the four cis,trans isomers.(b) Draw the more stable chair conformation for each of your answers in part (a).(c) Of the four cis,trans isomers, which is most stable? (Hint: If you answered thispart correctly, you picked the isomer found in nature and given the name menthol.)

FO 23: Identify and draw conformers. NH₂ NH2 NH2 NH2 NH2 NH2 1 NH2 NH2 4 2 3 (a) List any two structures that are related as conformers. Answer by listing exactly two numbers. (b) Draw one conformer of the new structure shown here: 1 and 3 (b) OH HO OH

Pls help ASAP. Pls circle the final answer

4. Isomers and Stereocenters ( (a) Assign each set of molecules as constitutional isomers, conformational isomers, enantiomers, diastereomers, or identical. Please write the full name for the type. Molecules Type (b) H₂Ca HgC.. CH3 OCH₂ CH3 af OCH, SP H₂C**** H₂C H₂C NGOCH, H.C_OCKS OCH₂ CH₂ H₁C HC H*** CI H H CI Br H3C CH₂ Br (d) E) (0) For each of the following molecules, write the number of stereocenters and circle the center of any stereocenters. (i) (ii) H₂C (онт (eg 5) (b) -CH3 Isegna CH3 on mots eno H₂C CH3