EXAM AGAIN - AP Chemistry Chemical Bonding and Molecular...

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AP Chemistry: Chemical Bonding and Molecular Geometry MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) The electron configuration of the S 2 - ion is __________. A) [Ne]3s 2 3p 6 B) [Ar]3s 2 3p 2 C) [Kr]3s 2 2p - 6 D) [Ne]3s 2 3p 2 E) [Ar]3s 2 3p 6 2) 2) Bond enthalpy is __________. 3) 3) The Cl - Si - Cl bond angle in the SiCl 2 F 2 molecule is approximately __________. 4) 4) Of the following species, __________ will have bond angles of 120°. 5) 5) The blending of one s atomic orbital and two p atomic orbitals produces __________. A) three sp 3 hybrid orbitals B) three sp hybrid orbitals C) two sp 3 hybrid orbitals D) three sp 2 hybrid orbitals E) two sp 2 hybrid orbitals 1
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6) 6) The molecular geometry of the left - most carbon atom in the molecule below is __________. Consider the following species when answering the following questions: (i) PCl 3 (ii) CCl 4 (iii) TeCl 4 (iv) XeF 4 (v) SF 6 7) 7) In which of the molecules does the central atom utilize d orbitals to form hybrid orbitals? 8) 8) A typical triple bond __________. 9) 9) According to VSEPR theory, if there are three electron domains in the valence shell of an atom, they will be arranged in a(n) __________ geometry. A) linear B) trigonal bipyramidal C) tetrahedral D) trigonal planar E) octahedral 2
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