'Bond dissociation' diaporamas de présentation

Bonding: General Concepts

Bonding: General Concepts. AP Chemistry Unit 8 Author: BobCatChemistry. Types of Chemical Bonds. Ionic Bonds. Ionic Bonds are formed when an atom that loses electrons relatively easily reacts with an atom that has a high attraction for electrons.

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Chapter 8

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Basic concepts: Molecules

Chapter 2. Basic concepts: Molecules. 2.1 Bonding models: an introduction. In a covalent species, electrons are shared between atoms. In an ionic species, one or more electrons are transferred between atoms to form ions.

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Chapter 8

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Chapters 9, 10 & 11

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Ch121a Atomic Level Simulations of Materials and Molecules

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Unit 5

Unit 5. Alkenes and Alkynes. Alkenes. Nomenclature Physical Properties Synthesis Reactions. Alkenes. Contain at least one carbon-carbon double bond (C=C). Also called olefins. Are unsaturated. (Alkanes are saturated.). Properties of C=C Bonds. sigma ( ? ) bonds. pi ( ? ) bond.

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ChE 553 Lecture 13

ChE 553 Lecture 13. Introduction To Surface Reactions. Objective. Start To Discuss Surface Reactions Overview of mechanism Typical reactions on metals Highlight well studied examples Qualitative trends with changing composition and structure. Topics. General Mechanisms Of Surface

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Understanding Organic Reactions

Understanding Organic Reactions. Writing Equations for Organic Reactions. Equations for organic reactions are usually drawn with a single reaction arrow ( ?) between the starting material and product.

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ReaxFF for Magnesium Hydrides

ReaxFF for Magnesium Hydrides. Sam Cheung, Weiqiao Deng, Adri van Duin FF-subgroup meeting 9 Dec. 2003. Topic Overview. Hydrogen storage: a brief history Objectives ReaxFF: general principles Building the ReaxFF for Mg-hydride File Format Applications Conclusion.

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Thermodynamics

Thermodynamics. For a reaction to be practical, the equilibrium must favor products and the reaction rate must be fast enough to form them in a reasonable time. These two conditions depend on thermodynamics and kinetics respectively.

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CHAPTER 6 Energy General, Organic, & Biological Chemistry Janice Gorzynski Smith

CHAPTER 6 Energy General, Organic, & Biological Chemistry Janice Gorzynski Smith. CHAPTER 6: Energy. Learning Objectives: Definition of Energy, Kinetic Energy, Potential Energy Heat transfer in reactions Enthalpy Exothermic and endothermic Energy unit conversions and calculations

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ReaxFF for Vanadium and Bismuth Oxides

ReaxFF for Vanadium and Bismuth Oxides. Kim Chenoweth Force Field Sub-Group Meeting January 20, 2004. Overview. Significance of a Bi/V force field ReaxFF: general principles Force field optimization for V Force field optimization for Bi Future work. Cat.

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Calorimetry & Enthalpy Changes

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Covalent Bonding

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Chapter 7 Section 2 Notes

Chapter 7 Section 2 Notes. Covalent (=molecular) Bonding. Formed when nonmetal atoms share electrons (Ex) HF, CO 2 , NH 4 Cl, NO 3 - Molecules: the smallest building block of molecular compounds (Ex) HF: a molecular compound Polyatomic ions also have covalent bonds

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P-block elements

P-block elements. General electronic configuration of the groups are : ns 2 np 3 ,ns 2 np 4 , ns 2 np 5 , ns 2 np 6 . . Radii increase down the group, however down the group the increse is small due to filling of electrons in d and f shells.

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Thermochemistry 6

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CF3Br Literature survey on energetics: agust,www,....cf3br/PPT-090910ak

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Chapter 3 Reactions of Alkanes

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