44. Cis-trans isomers are: A) diastereomers. B) enantiomers. c) stereoisomers. D) constitutional isomers. E) More than one of these

12) How are these molecules related? А. conformational isomers В. enantiomers C. diastereomers F D. constitutional isomers

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arent constitutional isomers, stereoisomers, and enantiomers basically the same thing?

Determine whether each pair of molecules represent: (a) identical compounds; (b) constitutional (structural) isomers, (c) enantiomers, or (d) diastereomers. Thank you.

2. What term best describes how the following structures/molecules are related to each other? Enantiomers Br b. Diastereomers c. Identical d. Constitutional Isomers سال Br Br Br

d) Molecular relationships; identify whether the compounds in each group are const. isomers, conformers, enantiomers, diastereomers, identical, meso or none of the above. ОН ОН H3C Br H3C LF H Br CH3 HO CI Br Br CI NH NH

c) For the following compound identify how many chiral carbons present and how many isomers are possible. HO C4H6NOF OH OH d) Figure out elements of unsaturation for the following compound

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

18. How many chiral carbon atoms does chlorocyclohexane have? a) Zero b) One c) Two d) More than two