Challenge Problems developed at

Title of Challenge Problem                 Topics covered in problem

        density, significant figures, unit conversions, critical thinking

         nomenclature, stoichiometry, unit conversions, significant figures, solubility                                                        equilibria and LeChatelier’s principle

        (A sequence of two problems)  nomenclature, stoichiometry, unit
                                                    conversions, significant figures, critical thinking                 

        hybridization, bond angles, acid/base stoichiometry and equilibria

         Lewis structures, intermolecular forces, critical thinking

         Lewis structures, intermolecular forces, graphing, critical thinking

         Solubility rules, net ionic equations, critical thinking

                             Empirical formula, stoichiometry, acid/base, Lewis structures, hybridization, thermochemistry

                             Balancing redox, standard potentials, electrochemical cells.

                             Periodic properties

                             Stoichiometry, kinetics

                              enthalpy, entropy, free energy, Hess' Law

                               unit conversions, stoichiometry, free energy, gas laws, critical thinking

Link to Challenge Problems written elsewhere:  

            http://jchemed.chem.wisc.edu/JCEWWW/Features/CQandChP/ChallengeProblemsIntro.html