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Chapter 9 Molecular Geometry and Bonding Theories

Learn about polar molecules, molecular geometry of compounds like NO2 and XeF4, hybridization of atoms in molecules, and counting sigma and pi bonds in compounds. Understand bond orders in species like O22–.

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Chapter 9 Molecular Geometry and Bonding Theories

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  1. Chapter 9Molecular Geometryand Bonding Theories Chemistry, The Central Science, 11th edition Theodore L. Brown; H. Eugene LeMay, Jr.; Bruce E. Bursten and Catherine J. Murphy Donna Narsavage Heald Siena College Loudonville, NY  2009, Prentice Hall

  2. Which are polar molecules? • a and b • a, b, and c • a and c • a, c, and d • c and e

  3. Which are polar molecules? • a and b • a, b, and c • a and c • a, c, and d • c and e

  4. What is the molecular geometry of NO2? • Linear • Bent • Trigonal planar • Tetrahedral • Pyramidal

  5. What is the molecular geometry of NO2? • Linear • Bent • Trigonal planar • Tetrahedral • Pyramidal

  6. What is the molecular geometry of XeF4? • Linear • Trigonal planar • Square planar • Tetrahedral • Pyramidal

  7. What is the molecular geometry of XeF4? • Linear • Trigonal planar • Square planar • Tetrahedral • Pyramidal

  8. What is the hybridization of sulfur in SO42–? • sp • sp2 • sp3 • sp3d • sp3d2

  9. What is the hybridization of sulfur in SO42–? • sp • sp2 • sp3 • sp3d • sp3d2

  10. What is the hybridization of nitrogen in HNO3? • sp • sp2 • sp3 • sp3d • sp3d2

  11. What is the hybridization of nitrogen in HNO3? • sp • sp2 • sp3 • sp3d • sp3d2

  12. What is the hybridization of sulfur in methyl mercaptan, CH3SH? • sp • sp2 • sp3 • sp3d • sp3d2

  13. What is the hybridization of sulfur in methyl mercaptan, CH3SH? • sp • sp2 • sp3 • sp3d • sp3d2

  14. How many sigma and pi bonds are in the molecule acetic acid, CH3COOH? • 6 sigma bonds, 2 pi bonds • 7 sigma bonds, 1 pi bond • 7 sigma bonds, 2 pi bonds • 8 sigma bonds, 0 pi bonds • 8 sigma bonds, 1 pi bond

  15. How many sigma and pi bonds are in the molecule acetic acid, CH3COOH? • 6 sigma bonds, 2 pi bonds • 7 sigma bonds, 1 pi bond • 7 sigma bonds, 2 pi bonds • 8 sigma bonds, 0 pi bonds • 8 sigma bonds, 1 pi bond

  16. How many sigma and pi bonds are present in sulfur trioxide, SO3? • 4 sigma bonds, 0 pi bonds • 4 sigma bonds, 1 pi bond • 3 sigma bonds, 0 pi bonds • 3 sigma bonds, 1 pi bond • 3 sigma bonds, 2 pi bond

  17. How many sigma and pi bonds are present in sulfur trioxide, SO3? • 4 sigma bonds, 0 pi bonds • 4 sigma bonds, 1 pi bond • 3 sigma bonds, 0 pi bonds • 3 sigma bonds, 1 pi bond • 3 sigma bonds, 2 pi bond

  18. What is the bond order in O22–? • 0 • 0.5 • 1 • 1.5 • 2

  19. What is the bond order in O22–? • 0 • 0.5 • 1 • 1.5 • 2

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