CH 301-Hance-Fall 2004-Test 3

CH 301-Hance-Fall 2004-Test 3 - 1 Version 168 - Exam 3 -...

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Version 168- Exam 3 - Hance (52025) This print-out should have 25 questions. Multiple-choice questions may continue on the next column or page - find all choices before answering. V1:1, V2:2, V3:2, V4:4, V5:4. ./ 001 (part 1 of 1) 4 points Atomic oxygen would most likely form its most stable monatomic ion when it ~ains one electron. Aevates one electron from the 8 orbital to a p orbital. ~levates one electron from a p orbital to a d orbital. ;:{. loses one electron. ~ loses two electrons. ~gains 0 electrons. / 002 (part 1 of 1) 4 points An ibonding orbitals 1. always hold unpaired electrons. ,. are higher in energy than bonding or- bitals. 3. hold the electrons excited out of bonding orbitals. 4. hold lone pairs of electrons. 5. hold non-bonding electrons. j' 003 (part 1 of 1) 4 points Consider the water molecule. The H-O-H bond angle is 7'the tetrahedral angle of 109.5°. ® a little less than the tetrahedral angle because lone pairs are more repulsive than the bonds to H atoms. 2 Aoo because there are four pairs of elec- trons. /a little greater than the tetrahedral angle because lone pairs are not as repulsive as the bonds to H atoms . /180 0 because the two pairs of bonding electrons need to be as far apart as possible. 004 (part 1 of 1) 4 points What is the correct electronic configuration for Mg2+? 1. [Ne] 38 2 2. 18 2 28 2 2p6 38 1 3p3 ~82 28 2 2p6 4. 18 2 28 2 2p6 3 2 3p2 / 7 005 (part 1 of 1) 4 points In molecular orbital theory bond or er IE determined from .> #elecantibond ~. 2 Y.#eleCbond / /. #eleCbond CP #elecbond ~#elecbond r" . . 2 - #eleCantibond - #eleCantibond 2 ./ 006 (part 1 of 1) 4 points Which of the following combinations of hy- bridization and molecular geometry is possi- ble? /sp3
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CH 301-Hance-Fall 2004-Test 3 - 1 Version 168 - Exam 3 -...

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