CHAPTER 8 SG

CHAPTER 8 SG - Where is it derived from What are the three...

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CHAPTER 8 STUDY GUIDE Define: bond energy, bond length, ionic bonding and covalent bonding. What is Coulomb’s law? How are polar covalent and pure covalent bonds different? What is electronegativity? What is the trend in electronegativity? Define dipole moment. Arrange the bonds in each of the following sets in order of increasing polarity: a. C – F, O – F, Be – F b. O – Cl, S – Br, C – P c. C – S, B – F, N – O What does isoelectronic mean? How does adding or removing electrons affect the size of an atom or ion? Define lattice energy. Explain the following trends in lattice energy: a. CaF 2 > BaF 2 b. NaCl > CsBr c. BaO > KF What are the differences between single, double and triple bonds? Why are only average bond energies listed in table 8.4? How do you determine the enthalpy of a reaction using bond energies? What does it meant to have a localized electron model? What is the difference between lone and bonding pairs? What are Lewis structures? State the octet rule.
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Unformatted text preview: Where is it derived from? What are the three steps involved in writing a Lewis structure? Give the exceptions to the octet rule. Draw Lewis structures for the following molecules: CO, SF 2 , H 2 SO 4 (H is bonded to O), ClO 2-, C 2 H 2 . Use bond enthalpies to estimate the enthalpy change for the reaction: H 2 + C 2 H 4 C 2 H 6 . What is a resonance structure? What is formal charge and how do you calculate it? What does it mean for a Lewis structure to be favored based on formal charge? What does VSEPR stand for? What are the steps involved in applying the VSEPR model? Complete the following table: # electron domains # lone pairs Molecular Geometry Bond Angles 2 2 3 3 3 2 4 4 4 3 4 2 5 5 5 4 5 3 5 2 6 6 6 5 6 4 6 3 6 2 Give the electron domain and molecular geometries for the following molecules or ions, and predict the bond angles: HCN, SO 3 2-, SF 4 , PF 6-, NH 3 Cl + , N 3-. Which of these molecules or ions is polar?...
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CHAPTER 8 SG - Where is it derived from What are the three...

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