Answer
There will be one other ressonance structure.
It will follow the first pattern.
- There will be a pi bond between the chloride and the carbon in the center.
- The pi bond from the oxygen will be removed.
- The oxygen will get a negative charge.
- The chloride will get a positive charge.
Work Step by Step
1. Draw the lone pairs.
2. Find which pattern fits the structure.
It is the first one, a lone pair (from the chloride) next to a pi bond.
3. Draw the arrows:
Follow the pattern for a lone pair next to a pi bond.
The electrons from the pi bond will move to the oxygen above them, so the carbon that lost the pi bond will get a positive charge.
Then, the lone pairs from the chloride will form a pi bond with this positive carbon.
4. Do the changes based on the arrows.
* Don't forget the formal charges!
