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Posted by on Friday, December 14, 2007 at 12:33am.

Last one thanks

lewis dot for

CO3^2-

  • Dr Bob thanks last one - , Friday, December 14, 2007 at 12:52am

    Too tough.

    :O:
      ..
     C::O:
      ..
      O:
      ..

    plus add two electrons to the right O. Add a 2- charge to the ion. This is ONE resonance form. You can draw the other two by moving the double bond from the central O (where I have it) to the top or to the bottom O.
    Check to see that there are 24 electrons.

  • Dr Bob thanks last one - , Friday, December 14, 2007 at 12:54am

    You must add two electrons to the top O, two to the right O, and two to the bottom O. I count 18 on what I drew, and it will make 24 if you had those 3 sets of two each.

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