3 Tag all the tertiary sp carbon(s) in the structure below. If there are none, please check the box below. H H H Br No carbon (s) need to be tagged in the structure. X

✓eck the box under each molecule in the table below that is an isomer of this molecule: i HO If there are no isomers, check the none of the above box under the table. HO OH none of the above O 0 OH X S

5

For the molecule shown select all the substituents that are trans to the Br group. Br Ме он H, tBu I NH2 Ha Et Cl

Correct each molecule in the drawing area below so that it has the condensed structure it would have if it were dissolved in a 0.1 M aqueous solution of HC1. If there are no changes to be made, check the No changes box under the drawing area. CH-C-OH No changes. HO–CH–CH, NH, - × : G

Select the correct number of primary, secondary, tertiary and quaternary carbons that are within the molecule shown here (You will need to make 4 selections): O 2 Secondary O 5 O 2 Quaternary O 3 Quaternary O 5 O 2 Primary O 3 Secondary Tertiary Tertiary Tertiary Quaternary Primary Primary Secondary

7.

Check all of the compounds in the list below that are constitutional (structural) isomers of each other. О Н +н Н H Н Н H С. C H # -Н Н H Н Н Н Н Н- Н Н C Н Н Н Н te Н OH Н None of the Above Н H Н H

Can you help me find all of the electron geometry tetrahedral bonds in this Vitimine A structure? The photo attached is one I got wrong. Thank you.

Part 1 of 2 Which of the following molecules is/are constitutional isomer(s) to (CH3) CHCH₂CH₂C(CH₂)₂? Check all that 2 apply. > CH₂ 3 CH₂ 3 I HỌC–CH–CH,-CH,-C−CH, None of the above CH3 (CH₂)₂C(CH₂)₂C(CH₂)₂ 3 X OO olo Ar ▶