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Chapter 8: 7-10

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Charge Distribution, Polarity, and Bond Properties

Chapter 8: 7-10 Homework

Reading Preparation

Textbook assignment: Read Kotz and Triechel, Chemistry and Chemical Reactivity Chapter 8: Section 7-106.

Study Notes

Important Formulae

Bond orderBO = shared pairs in X-Y bonds / X-Y links in molecule shared pairs: total pairs of electrons in bonds links: total bond connections X, Y: atoms of elements X and Y

Web Lecture

Read the following weblecture before chat: Charge Distribution and Molecular Polarity

Study Activity

Videos for Chapter 8: Chemical Bonds and Molecular Geometry

Review the Videos at Thinkwell Video Lessons.

  • Under "Chemical Bonding: Fundamental Concepts: Resonance Structures and Formal Charge"
    • Electronegativity, Formal Charge, and Resonance
  • Under "Chemical Bonding: Fundamental Concepts: Bond Properties"
    • Bond Properties
    • Using Bond Dissociation Energies


Use the pHET Model simulation below to build each of the molecular shapes in your text:

  • linear (three atoms, two single bonds)
  • bent (three atoms, two single bonds, two lone pairs)
  • trigonal planar (three atoms around fourth central atom, three single bonds)
  • trigonal pyramidal (three atoms around fourth central atom, three single bonds, one lone pair)
  • tetrahedral (four atoms around fifth central atom, four single bonds)
  • trigonal bipyramidal (five atoms around sixth central atom, five single bonds)
  • octahedral (six atoms around seventh central atom, six single bonds)

Chat Preparation Activities

Chapter Quiz

Lab Work

LAB #6 GUIDED INQUIRY: Using qualitative methods to differentiate covalent and ionic bonds. -- Phase III

Post your formal report on your experiment. Include photographs of any models you created.