O'Dea Exam 1

O'Dea Exam 1 - Exam I: CHEM IC - Summer 2009, O'Dea (100...

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Unformatted text preview: Exam I: CHEM IC - Summer 2009, O'Dea (100 points possible) FORMA Last Na m e : _-,-k~'--,E =-- Y-,---- ___ ____ __ First Name: _ _ _ _ _ _ _ _____ _ _ Perm #: __ __ _____ ____ _ I. (20 pts) Indicate ALL intermolecular forces present in the following substances (abbrev. are ok to use): a) N2 LDF c) CH 4 _ ~ LD~F _ __ _ _ _ d) CO 2 --'L=>D <....!F _ __ _ h)HCN Di-bj LDF > i) HF H bOY1d LD~ , 2. (2 pts) Circle. which are stronger: intermolecular forces 1J1tramolecular forces 3. (3 pts) What neutral atom is isoelectric with K2+? CI 4. (3 pts) How many p orbitals are unhybridized in an atom with dsp3 hybridized orbitals? 5. (3 pts) Which atoms (in neutral form) on the periodic table exist unbound? 6. (3 pts) A pel V"{}, mnyt1 dl (. molecule has unpaired electrons in its molecular orbital energy diagram and is attracted to an external magnetic field. 7. (5 pts) Rank the following bonds in order of polarity: K-C l, C I-Cl , C-O, C-N, Cs-Cl c~ - c, > k-cl > C-o > C- N > CI - CI Most polar Least polar...
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O'Dea Exam 1 - Exam I: CHEM IC - Summer 2009, O'Dea (100...

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