14-bonding - Bonding General Concepts Ionic Bonds Covalent...

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1 Week 6 CHEM 1310 - Sections L and M 1 Bonding: General Concepts Ionic Bonds Sections 13.2 - 13.6 Covalent Bonds Section 13.7 Section 13.8 - 13.9 Lewis Structures Sections 13.10 - 13.12 VSEPR Theory Section 13.13 Friday Week 6 CHEM 1310 - Sections L and M 2 Order of Filling Subshells 4s level filled before 3d Figure from Chemistry the Easy Way by Joseph A. Mascetta What is the order in which subshells are filled?
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2 Week 6 CHEM 1310 - Sections L and M 3 What is Bond Energy? Bond energy is the energy required to make or break 1 mol of a chemical bond. Energy is released when bonds are broken : Exothermic Energy is supplied when bonds are formed : Endothermic Week 6 CHEM 1310 - Sections L and M 4 Bond Energies, kJ/mol Single bonds have lower bond energy in general Higher bond energy
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3 Week 6 CHEM 1310 - Sections L and M 5 Multiple bonds are shorter than single bonds. Week 6 CHEM 1310 - Sections L and M 6 Enthalpy What is enthalpy (H)? A state function: pathway does not matter H = E + PV, where E = internal energy of a system P = pressure of the system V = volume of the system Δ H = q p the energy flow as heat at constant pressure How can enthalpy help us understand chemical bonding?
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4 Week 6 CHEM 1310 - Sections L and M 7 Bond Enthalpy For a chemical reaction,
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This note was uploaded on 08/23/2011 for the course CHEM 1310 taught by Professor Staff during the Spring '11 term at University of Florida.

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14-bonding - Bonding General Concepts Ionic Bonds Covalent...

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