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hw 5 - Ansari Usman Homework 5 Due 11:00 pm Inst Brodbelt...

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Ansari, Usman – Homework 5 – Due: Oct 17 2007, 11:00 pm – Inst: Brodbelt 1 This print-out should have 21 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. The due time is Central time. Brodbelt CH301 Homework 5 Due October 17, 2007 at 11:00 PM Please note that the terms electronic ar- rangement and electronic geometry mean the same thing. Also, the terms molecular shape and molecular geometry mean the same thing 001 (part 1 of 1) 10 points NF - 2 has (2, 3, 4) regions of high electron density and (2, 4, 6) bonded electrons. 1. 2; 4 2. 2; 2 3. 2; 6 4. 3; 2 5. 4; 4 6. 4; 6 7. 3; 4 8. 3; 6 9. 4; 2 002 (part 1 of 1) 10 points A molecule has one lone non-bonded pair of electrons on the central atom and three atoms bonded to the central atom. What is its electronic arrangement and its hybridization? 1. tetrahedral; sp 2 2. pyramidal; sp 3 3. tetrahedral; sp 3 4. trigonal planar; sp 3 5. pyramidal; sp 2 6. angular; sp 3 7. trigonal planar; sp 2 003 (part 1 of 1) 10 points The electronic arrangment is the same as the molecular shape when 1. the molecule is not polar. 2. there are no lone pairs of electrons on the central atom. 3. the atoms are joined by sigma bonds. 4. there are more shared electrons than non- shared electrons. 5. the number of bonding orbitals equals the number of anti-bonding orbitals.
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