14A_scerri_hwquestions_2011F

14A_scerri_hwquestions_2011F - 1 When a double bond is...

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When a double bond is formed between two atoms, one of the bonds is a sigma bond and the other is a pi bond. The pi bond is created by the overlap of. .. a. sp 2 hybrid orbitals b. sp 3 hybrid orbitals c. p orbitals d. s orbitals 2. The central atom in BrF 5 has _?_ bonding pairs of electrons and _?_ lone pairs of electrons. a. 1...5 b. 0...5 c. 5...1 d. 5...0 3. Which of the following molecules does not have a net dipole moment? a. H 2 O b. NH 3 c. BF 3 d. BrF 5 4. What is the molecular geometry for ammonia (NH 3 )? a. see saw b. trigonal planar c. tetrahedral d. pyramidal 5. What is the molecular geometry for chlorine trifluoride (ClF 3 )? a. trigonal planar b. tetrahedral c. T-shaped d. pyramidal 6. The molecular orbital diagram for the carbide ion (C 2 -2 ) would show which of the following molecular configuration? a. σ 1 s 2 1 s 2 2 s 2 2 s 2 , π 2 p 4 b. σ 1 s 2 1 s 2 2 s 2 2 s 2 2 p 4 , σ 2 p 2 c. σ 1 s 2 1 s 2 2 s 2 2 s 2 2 p 4 , σ 2 p
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This note was uploaded on 12/04/2011 for the course CHEM 14A 142042200 taught by Professor Lavelle during the Fall '10 term at UCLA.

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14A_scerri_hwquestions_2011F - 1 When a double bond is...

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