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Chapter 9 Molecular Geometries and Bonding Theories

Chemistry, The Central Science , 10th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten. Chapter 9 Molecular Geometries and Bonding Theories. Molecular Shapes. The shape of a molecule plays an important role in its reactivity

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Chemistry 120

Chapter 13: Structure and Shape. Chemistry 120. Outline Types of Bonds Ionic Metallic Covalent Electronegativity Bond Polarity Bonding Lewis Electron-Dot Structures VSEPR Theory Molecule Polarity . Chapter 12: Chemical Bonding. Gilbert N. Lewis. p356. Linus Pauling . p358.

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Ch. 10: Chemical Bonding

Ch. 10: Chemical Bonding. Dr. Namphol Sinkaset Chem 152: Introduction to General Chemistry. I. Chapter Outline. Introduction Lewis Dot Structures Ionic Compounds Covalent Compounds Shapes of Molecules Polar Bonds and Polar Molecules. I. Introduction.

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Topic 10 Molecular Geometry and Bonding Theory

Topic 10 Molecular Geometry and Bonding Theory. Molecular Geometry.

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UNIT: BONDING TIER 5

UNIT: BONDING TIER 5. - Determine if a molecule is polar or nonpolar -Evaluate the type of intermolecular forces that occurs between covalent molecules based on the structural features of the molecules -Evaluate how the intermolecular forces affect the boiling points of substances.

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Chemical Bonds, Electronegativity , Lewis Structures, VSEPR and Molecular Geometry

Chemical Bonds, Electronegativity , Lewis Structures, VSEPR and Molecular Geometry. Students will identify differences between ionic and covalent bonding, draw lewis structures and identify molecular geometry using VSEPR. Bonds.

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Chapter 12:

Chapter 12: . Chemical Bonding. Expect to learn about. Types of chemical bonding Forming chemical bonds ionic covalent Lewis dot structures Bond polarity Molecular polarity VSEPR theory Geometries of molecules. Types of Chemical Bonding.

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Bonding

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Molecular Geometries

Molecular Geometries. What is it?. The three dimensional arrangement of atoms in a molecule (i.e. covalent compounds) Determined by the bonding pairs of electrons (shared) and the lone pairs of electrons (non-bonding pairs) We predict the 3-D shape using VSEPR

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Chemistry 120

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VSEPR MODEL V alence S hell E lectron P air R epulsion Model

VSEPR MODEL V alence S hell E lectron P air R epulsion Model A model for predicting the shapes of molecules and ions in which valence shell electron pairs are arranged about each atom so that electron pair repulsion is minimized. ELECTRONIC GEOMETRY

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Predict which of the following compounds would be the strongest acid.

Predict which of the following compounds would be the strongest acid. For 1H-NMR peak that is a doublet with an integral of 3 H at 1.21 ppm what do we know?. Assign the priority according to the Cahn- Ingold -Prelog convention.

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To understand molecular structure and bond angles To learn to predict molecular geometry from the number of electron pa

Objectives. To understand molecular structure and bond angles To learn to predict molecular geometry from the number of electron pairs To learn to apply the VSEPR model to molecules with double bonds .

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Molecular Geometry and Bonding Theories

Molecular Geometry and Bonding Theories. Molecular Shapes. The overall shape of a molecule is determined by its bond angles. The bond angles and bond distances accurately define molecular geometry.

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VSEPR

VSEPR. Valence Shell Electron Pair Repulsion Theory. VSEPR. e- pairs repel each other so they are oriented as far apart as possible. VSEPR Rules. Draw the Lewis Structure for the molecule Count the total number of . . . Bonded regions around the central atom

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VSEPR Theory

VSEPR Theory. Molecular geometries. VSEPR Theory. Stands for valence-shell electron-pair repulsion theory States that because electrons repel each other, the molecular shape of the compound will change so that the valence electron pairs are as far away from each other as possible.

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Unit 5: Bonding and Molecular Structure

Unit 5: Bonding and Molecular Structure. From yesterday:. What are the 3 possible resonance structures for OCN - and which contribute most to the molecular structure?. Unit 5: Bonding and Molecular Structure. Another consequence of resonance structures:.

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VSEPR and Molecular Geometries

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Valence Bond Theory:

Valence Bond Theory:. Basic Overlap of orbitals in H 2 , HF and F 2. Important points for orbital overlaps (valence bond):. 1. Orbitals overlap to form a bond. Theories of Bonding. 2. Two electrons fit in the overlapping space. Usually each atom supplies 1 electron.

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