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Homework Help: Resonance Structures and VSEPR

  1. Oct 7, 2007 #1
    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+
  2. jcsd
  3. Oct 7, 2007 #2
    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
  4. Oct 7, 2007 #3
    I did that and I came up with SO32- being the only answer.

    Is that correct or am I doing something wrong?
  5. Oct 7, 2007 #4
    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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