DCI 27:

Activity (Resonance Structures)
(http://genchem1.chem.okstate.edu/BDA/DCIs/ResonanceStructure.pdf)

Answers (Resonance Structures) partial answers
(http://genchem1.chem.okstate.edu/BDA/DCIs/ResonanceStructureAns.pdf)

Activity (Bond Energies)
(http://genchem1.chem.okstate.edu/BDA/DCIs/BondEnergies.pdf)

Answers (Bond Energies)
(http://genchem1.chem.okstate.edu/BDA/DCIs/BondEnergiesAns.pdf)