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I would need help with these practice exercises. I'm trying to figure out the steps to follow to find the answers, but i get easily confused. Could you help me pls?

  • How do i figure out all possible constitutional isomers? and how would i know that i found all of them?
  • How do i label major, minor or equal contributors? (I dont understand this concept very well)
  • What is curved arrows in organic chemistry?

I would greatly appreciate the help. With my sincere thank!


questions that im stuck in:


org 11.jpg

org 22.PNG

org 11.jpg
Draw all possible constitutional isomers for 'C3HsO', using dash structural formulas.
For the resonance structures shown: (i) write missing (nonzero) formal charges, (ii) draw curved arrow(s)
to show the electron shift(s) in the left structure in order to obtain the structure on the right, (iii) label
major, minor, or equal contributors to the resonance hybrid, and (iv) fully explain your label(s) in (iii).
(i), (ii)
H
H
H-C-C-C=N:
( H-C-C=C= N
1
H H
[-
H H
(iii)
(iv)
org 22.PNG

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