Are the following valid resonance structures of NCS? [: N=C-S:]- and O Yes No [:N C-S]-

Which is incorrect??

Determin the total number of resonance structures for the following image below?

For each of the following pairs of resonance structures, cirele the one that would make greater contribution to the actual resonance hybrid. OCH, OCH, A- BI E =

11. Add curved arrows to the following structures to show how electron pairs must be moved to interconvert the structures, and locate any formal charges. This is the nitrate ion and it has three resona onance structures (RS). וך- :ó: :0: 1. supply formal charges 1. supply formal charges 2. draw e pushing arrows draw third RS here 2. draw e¯ pushing arrows that make second RS to make third RS

Which of the following pairs are feasible resonance structures? I. CH₂=CHCH₂ and II. III. IV. V. III IV CH₂=CH :OH CH3-C-H :0: CH3-C-H and and and CH,−O−CH, and CH3-C- || :Ö: CH₂-C-H CH3-C-H CH₂CH₂OH -H

Determine the relationship between Structure A and Structure B in each row of the table. H -O: H H Structure A :0: H H :O: H H H H H :S-C=N: H H H H Structure B :0: :0: H H H H H J ·0 :N=C—S H H H H H H isomers resonance structures neither isomers resonance structures neither Relationship isomers resonance structures neither ? olo Ar

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Im practicing drawing resonance structures. Can someone explain why this carbon's formal charge becomes negative? I calculated the formal charge to be:  (ve-)-(bonds + dots) : 4- ( 2+2)= 0, so I'm confused .

• -- H (b) H,C 3-methylhexane CH, (c) B கூ CH, CH, HgCG; சீகூ H₂CH H 3-ethyl-1-methyloctane 3,3 diethyl pentane 5Å, Å,CH, W CH3 CH2 CH₂ W21 Su2... CH3 X -CH3 G b F E L c