Determine the relationship between Structure A and Structure B in each row of the table. H. Structure A Structure B Relationship O isomers HHHH HHHH C. C H C C H H O resonance structures H H :0- H H H H neither H H H-N=C=N-C-H + H-C-C-N=N: H H H O isomers O resonance structures neither O isomers :S-C=N: :N=C―S: O resonance structures neither

O REPRESENTATIONS OF ORGANIC MOLECULES Identifying isomers and resonance structures Determine the relationship between Structure A and Structure B in each row of the table. Structure B Relationship Structure A isomers H :NEN H. H-C C -NEN: H-C-C H. O resonance structures н н H O neither o isomers :o: H H H -C-H -H O resonance structures H o neither o isomers :o: H H O resonance structures H. `H. H H. H. o neither P Type here to search DE

Lewis structures of mescaline, a hallucinogenic compound in peyote cactus, and dopamine, a neurotransmitter in the mammalian brain, appear below. Suggest a reason for mescaline’s ability to disrupt nerve impulses.

Which set shows the correct resonance structures for SeO2? O O O - :: O SeO2 does not have a resonance structure. O = Se 0:0 - Se = = 0: = Se - 0:0 :: Se = : 0: 0-Se-00 = Se = 0 :0 = Se= 0: O= Se- 0 :: 0 -Se= 0:

Lewis structure name of highlighted group H – C= O Н — С — Н н — N — н H Н — С — Н O =C - N H H н н н —N C C= - H :0: :0 : : Z - I - :0:

8. Which structure is the best resonance structure for the acetate ion shown here? H H :0 H-Ç-C- H H :ö: H b) H-C=C- ö-ö-5-5-H (e H H :ö-H H :ö: c) H-C--ö: d) H-C-c=0: H H

Resonance, hybridization, Lewis structures: Draw the lowest energy alternative resonance structure for acetamide Part A Draw the lowest energy alternative resonance structure for this compound. Interactive 3D display mode NN H₂C Draw the structure on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default. [1] A NH,₂ H 12D EXP.¹ CONT ● L Marvin JS by ChemAxon H C N O S CI Br I P F

Which of the following pairs are NOT resonance structures? + H₂C-0-N=0: and H₂C-O=N-0: :0=c=0: =Ö: and :Ö= H₂C-0-N=0: and H₂C- Each of these pairs represents resonance structures. O None of these pairs represents resonance structures.

Which of the following correctly represent resonance structures?

REPRESENTATIONS OF ORGANIC MOLECULES Identifying isomers and resonance structures Determine the relationship between Structure A and Structure B in each row of the table. Structure A Structure B Relationship H. o isomers H. H H -H H-C- C-O -H- O resonance structures H H. H H Н—С—Н o neither H o isomers H :0: :0-H H. H H- C-C C-H H-C=C C=C-H O resonance structures H. H. H o neither o isomers :o: H H. H- O resonance structures H H H. H o neither 72°F DELL :ö: II