Chemistry 51 Exam 1 Summer 2002 This is a closed book exam. All answers must appear on the answer sheet. This question sheet will not be collected. Write your name on both sides of the answer sheet now. 1.For each of the following equilibria predict if the equilibrium constant is greater than one (favoring products), equal to, or less than one (favoring reactants) A B. 2.Give two complete resonance structures for nitromethane, CH3NO2. Show lone pairs and formal charges. 3.Name the following compounds including configuration specification. A B 4. a)Draw a three dimensional representation of the transition state for Step 2 in the free radical halogenation of methane. b) What are the qualitative differences in the nature of the transition state if the halogen is chlorine or bromine? NH2-+ H2ONH3+ OH-CH3- + H3O +CH4+ H2OHFHBrCH2OHCHOOHCO2HC2H5HHCO2HHF
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