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CCF11302007_00002 - 1‘3 Bond enthalpy is always positive...

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Unformatted text preview: 1‘3 Bond enthalpy is @) always positive B) always zero C) sometimes positive, sometimes negative D) always negative E) unpredictable / . LIA 1") The electron—domain geometry of is tetrahedral. ,1, . A) XeF4 x 7 w ’ / j gCClzBrz {a mPHs “ a of the above except XeF4 13 The molecular geometry of the SinClz molecule is . A) trigonal pyramidal B) trigonal planar \ (if: octahedral / D) T—shaped 1-6) _'Ihe F—B—F bond angle in the BF3 molecule is . /‘“"‘ “‘\ A) 60° . B) 1095" C) 180" D) 90° E) 129:,“ l ”W / 1-7) The bond angles marked a, b, and c in the molecule below are about , , and , respectively. @1095", 120°, 1093 B) 109.52 90°, 120° C) 120°, 120°, 90° D) 90°, 90°, 90° E) 120°, 120°, 109.5° ...
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