Decide whether each row is a set of resonance structures for a single molecule and select "yes" or "no" in the last column. N structures resonance structures? 'N yes Н HIN H-V ¿ Н مد لله no ○ yes no ○ yes no ○ yes no

Lewis structure name of highlighted group Н — С: Н — С — Н Н —N — H нн Н — С — С Н —С — Н H O=C-C: N : H - -

The following is a skeleton of a molecular anion having the overall formula C7H6NO–. The H atoms are not shown. Starting with the structure drawn below, complete the Lewis structure by adding all H atoms, valence electrons, and π bonds. This structure will have a –1 formal charge on the oxygen.

What are the formal charges for the indicated atoms in the neutral structure below くーG C=N,=N2 OC = 0, N1=-1, N2 = +1 OC = 0, N1 = 0, N2 = 0 %3D OC = 0, N1 = +1, N2 = – 1 OC = -1, N = +1, N2 = 0

Provide ALL reasonable resonance structures for each molecular structure below

Why are the major structures the ones where carbon has incomplete octets? Isn't the first rule for major resonance structures that the structure have as many full octets as possible?

shift Draw Lewis structures for CN*, CN, and CN fn tab esc caps lock ~ control GooD IBES ! 1 W A 1 option 2 Z 59 F2 W S # 3 X дв command 80 F3 E D $ 4 C Draw Lewis structure for CN+. Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons and nonbonding electrons. Show the formal charges of all nonhydrogen atoms, or use square brackets to denote the overall charge. a F4 R [] F % 5 4 FS V T G HONSPFBCIX MacBook Air 6 & F6 Y B & 7 H * U N * 8 J D-II FG I M ( 9 K More R O - : ; I 4 F11 { [ option + = 11 ? T 1 am $12 1

A resonance hybrid is a structure that can be depicted by more than one valid Lewis structure. part1: Draw the major resonance form of fulminic acid, HCNO, with the atoms connected as indicated in the formula. Your structure should have nonzero formal charges minimized, and it should include all nonzero formal charges and all nonbonding electrons. part2: Draw the second most important resonance form of fulminic acid, HCNO, with the atoms connected as indicated in the formula. Your structure should have nonzero formal charges minimized, and it should include all nonzero formal charges and all nonbonding electrons. part3: Draw the least important resonance contributor for fulminic acid, HCNO, with the atoms connected as indicated in the formula. Your structure should have nonzero formal charges minimized and should include all nonzero formal charges and all nonbonding electrons.

PROVISIONAL LEWIS STRUCTURES T01/S02 For each provisional structure, enter the central atom formal charge (if not zero, enter the sign before the value) and, separating by comma without any space, indicate (Y or N) if it is the correct Lewis structure. For example, your answer could be "-2,Y". 一- I3 ICI2* 一ー CIO IF3

b How many of the following statements are true? • Formal charge can be used to pick the best Lewis structure amongst 2 choices. • For a species having three resonance structures, it is best to think of the species to exist as each of these structures one- third of the time, and switching between those three structures Resonance structures involve changes to the sigma bonds. esc s lock 02 01 0 3 00 A control ! 1 Q A 2 N W S #3 X E مه 1 option command 26 D $ 4 * R C LL F % 5 K T V MacBook Pro Y A 6 G Y & 7 H U *00 B N 8 J - ( 9 M K MOSISO C