WS-1.16: Draw the resonance forms of a) an allyl cation and b) an allyl anion.

Change ethane into 1,2-ethanediol (HOCH2CH2OH) by removing one hydrogen atom from each carbon atom and replacing with a hydroxide (-OH) group.   Draw a Lewis structure for 1,2-ethanediol.

2. Both pairs below show arrangements of the same (fictional) formula: A,X Which pair (a orb) represents resonance structures? Explain. a) A X=A A =X b) A X=A A XEA A

Draw the best Lewis structure for the linear C₁ion, including all lone pair electrons and non-zero formal charges. Click and drag to start drawing a structure. × X :□ P

Convert the condensed formula CH3(CH2), CHO into a Lewis structure (including all lone pair electrons). Click and drag to start drawing a structure. X 5 A

4. One of the resonance structures of "tropylium ion" (C7H7*) is shown below. It is planar and aromatic with Hückel number of p-n electrons where n=1. Draw all the other contributing resonance structures. (There are more than two.) Based on the “average" of the contributing resonance structures, how close does the average ring carbon get to its "octeť" in tropylium ion?

#2

Draw out the organic shorthand for the molecules below, and then draw another possible resonance structure of the same molecule next to with arrows to show electron movement.  -CH3CH2CONH3 -CH3CH2COOH

Which of the following is true about pairs A and B? V-00 and A + NH₂ and B Neither A nor B represent pairs of resonance structures Both A and B represent pairs of resonance structures ΝΗ A represents a pair of resonance structures but B does not B represents a pair of resonance structures but A does not II

Model 1: Resonance Structures for a Carbonyl Group :8:9 H3C Questions: 1. (a) (C) (d) CH3 (e) H3C 2 CH3 ·lone Pairs (b) How many single (sigma) bond electrons are in structure 1 2 3 __)? banding Count the electrons in each bond and each lone pair to determine how many total electrons are in structure 1) and structure 2 Is the total number of electrons in each structure the same? (Circle one) es 2 بها How many lone pair electrons are found in structure 1 L L3 )? Is the number of single (sigma) bond electrons the same in each structure? (Circle one) yes / ho and structure 2 POGIL www.POOR.RO (4145131 ) and structure 2 Is the number of lone pair electrons the same in each structure? (Circle one) yes / no. and How many double (pi) bond electrons are found in structure 1 U structure 20 ___)? Is the number of double (pi) bond electrons the same in each structure? (Circle one) yes no Based on the answers above, describe what is different between structures 1 and 2 (in terms of electrons)?…