Exam II Study Guide

Exam II Study Guide - Department of Chemistry CHM 1220/1225...

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Department of Chemistry CHM 1220/1225 Exam II Study Guide Coverage: The exam covers Chapters 9, 10 and 5. In addition there will be one question covering stoichiometry. Format: The exam will be composed of 10 questions (some may have more than one part) worth 15 points each. Chapter 9: Ionic and Covalent Bonding Equations Heat of reaction, Δ H = Total of bond energies of bonds broken – Total of bond energies of bonds formed Operation Skills 1. Given a metallic and a nonmetallic main-group element, use Lewis symbols to represent the transfer of electrons to form ions of noble-gas configurations. 2. Given an ion, write the electron configuration. 3. For an ion of a main-group element, give the Lewis symbol. 4. Given a series of ions, arrange them in order of increasing ionic radius. 5. Given the electronegativities of the atoms, arrange a series of bonds in order by polarity. 6. Given the molecular formula of a simple compound or ion, write the Lewis electron-dot formula. 7. Given a simple molecule with delocalized bonding, write the resonance description. 8. Given two or more Lewis formulas, use formal charges to determine which formula best describes the electron distribution or gives the most plausible molecular structure. 9.
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This note was uploaded on 04/02/2008 for the course CHM 1220 taught by Professor Barber during the Fall '07 term at Wayne State University.

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Exam II Study Guide - Department of Chemistry CHM 1220/1225...

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