'Formal charges' diaporamas de présentation

Chem 150 Unit 1 - Molecules

Chem 150 Unit 1 - Molecules. Organic and Biological Chemistry substances are made of molecules. Being able to predict the structures and interactions of molecules is important to our understanding of Organic and Biological Chemistry. Atomic Structure.

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Where is Vietnam?

Where is Vietnam?. Why Did the United States Fight a War in Vietnam?.

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ADDITIONS OF AMINES TO CARBONYL GROUPS

ADDITIONS OF AMINES TO CARBONYL GROUPS. Aldehydes and Ketones. MANTRA. (Memorization Jingle). Reactions with C=O :. Primary amines yield imines. Secondary amines yield enamines. Tertiary amines do not react. we will come back to this again and again. AMINES:. . . . primary.

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ADDITIONS OF AMINES TO CARBONYL GROUPS

ADDITIONS OF AMINES TO CARBONYL GROUPS. Aldehydes and Ketones. MANTRA. (Memorization Jingle). Reactions with C=O :. Primary amines yield imines. Secondary amines yield enamines. Tertiary amines do not react. we will come back to this again and again. AMINES:. . . . primary.

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Chemistry 100 Chapter 9

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Chapter 8 Concepts of Chemical Bonding

Chemistry, The Central Science , 10th edition Theodore L. Brown; H. Eugene LeMay, Jr.; and Bruce E. Bursten. Chapter 8 Concepts of Chemical Bonding. John D. Bookstaver St. Charles Community College St. Peters, MO ? 2006, Prentice Hall, Inc. Chemical Bonds. Three basic types of bonds:

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2. Polar Covalent Bonds: Acids and Bases

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Simple Bonding Theory

Simple Bonding Theory. Review of Lewis Structures and VSEPR Theory. Resonance. Some molecules may have more than one valid Lewis structure. These structures differ in the placement of multiple bonds.

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8.1 Chemical Bonds, Lewis Symbols, and the Octet Rule

8.1 Chemical Bonds, Lewis Symbols, and the Octet Rule. Chemical bond - attractive force between atoms or ions Ionic bond - electrostatic force between oppositely-charges ions; results from the transfer of electrons from a metal to a nonmetal.

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Drawing Lewis structures

Drawing Lewis structures. Write the electron dot diagrams for each element in the compound. Check the electronegativity difference between the elements to determine if electrons are transferred or shared.

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Reconstruction Trivia

Reconstruction Trivia. Vocabulary, Key Events, and Important People Review. The following is the definition of what vocabulary word?. Forgiveness granted by the government to a group of people. Amnesty. The following is the definition of what vocabulary word?.

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Socrates on Trial

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The Civil War P a rt II

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Put on your head phones!

Put on your head phones!. Court Proceedings for a Criminal Cas e. Fill in your notes sheets as you follow along. . Criminal Cases. Criminal Cases Offenses against the public order. Criminal cases can be felonies or misdemeanors . . Adversarial Nature of the Courts .

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Ch 3 Lecture 1 Simple Bonding Theory

Ch 3 Lecture 1 Simple Bonding Theory. Lewis Structures Lewis Bonding Model Bonds between atoms consist of one or more shared pairs of electrons Unshared electrons exist as lone pairs on atoms Both bonding pairs and lone pairs influence: Shape Reactivity Follows the Octet Rule

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1.6 Formal Charge

1.6 Formal Charge. Formal charge is the charge calculated for an atom in a Lewis structure on the basis of an equal sharing of bonded electron pairs. . :. O. . N. H. O. . :. :. O. Nitric acid. Formal charge of H.

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Formal Charge and Bond Energy

Formal Charge and Bond Energy. Definition. Each atom in a molecule can be thought of as having a Formal Charge Formal Charge = difference between the number of valence electrons on the free atom minus number of valence electrons assigned to the atom in the molecule.

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Lewis Dot Diagrams and Formal Charges

Lewis Dot Diagrams and Formal Charges. Dinitrogen monoxide: N 2 O. Lewis Dot Diagrams and Formal Charges. Dinitrogen monoxide: N 2 O. Sulfuric acid: H 2 SO 4. Sulfuric acid: H 2 SO 4. Bond Energies and Enthalpy of Reaction. Density of Gold.

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Identify central atom and ligands

C, N, O, and F always obey octet rule . H, Be do not follow octet rule Example: BeCl 2 , H 2 . If only 3 electron groups around central atoms, then central atom forms incomplete octet Example: BH 3. Group III (13) elements such as B, Al . Identify central atom and ligands.

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Where is Vietnam?

Where is Vietnam?. Why Did the United States Fight a War in Vietnam?.

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