Which Molecule Has Three Charge-Minimized Resonance Structures?

AI Thread Summary
The discussion centers on identifying which molecule among the options has three charge-minimized resonance structures. Participants suggest using VSEPR theory and drawing Lewis structures for each molecule to determine resonance. The consensus indicates that SO32- is initially considered, but further analysis reveals that it is not the correct answer. Instead, another molecule from the list is confirmed to have three resonance structures with minimized formal charges. The key takeaway is the importance of drawing and analyzing Lewis structures to accurately identify resonance forms.
kayleech
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Hi,
I'm having trouble figuring out which of the following molecules can be described using three charge-minimized resonance structures. Does anyone have any idea which molecules this would include?

a. SF4
b. SO3
c. SO32-
d. HSO4-
e. SO2+
 
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Suggestion: Use VSEPR to find out their bonding structures, or type their names into Google to save time, from there you should be able to work towards the final answer
 
I did that and I came up with SO32- being the only answer.

Is that correct or am I doing something wrong?
 
If you are looking for one of your choices to have 3 resonance structures, it would be best to draw the Lewis structures for EACH one a) - e) There is only one (and its not
SO32-) that has 3 resonance structures and the formal charges would be minimized for each resonance of that choice.
 
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