'Dinitrogen monoxide' diaporamas de présentation

Atoms, Molecules and Ions

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Bonding and Nomenclature

Bonding and Nomenclature. Term: _______________________ 1 2 3 4. Define (in your own words): ____________________________________________________________________________________________________________________________________________________________________________ Draw:. covalent bond :.

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Reminder

Reminder. When the timer reaches 0: You must have your notebook out and open, Have a pen or pencil ready And, if there was homework, have it out on your desk. Then, copy the objective and ANSWER the Do Now questions. 4 January 2010

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Atoms, Molecules and Ions

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Chapter 9: Models of Chemical Bonding

Chapter 9: Models of Chemical Bonding. Lewis Dot Symbols Ionic Bonding Metallic Bonding Covalent Bonding Polar Bonds Electronegativity. Lewis symbols. Practice. Give Lewis dot symbols for:. Oxide ion. magnesium. Sodium ion. nitrogen. fluorine. argon. boron.

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AP CHEM CHAPTER 3

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Molecular Compounds

Molecular Compounds. Molecular Compounds. Composed of all nonmetals Single unit = Molecule Held together by covalent bonds Atoms share pairs of electrons They can share 1, 2, or 3 pairs of electrons to form single, double or triple covalent bonds.

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Welcome to Chemistry I-2!

Welcome to Chemistry I-2!. Review of Important Chemistry I-1 topics of science! Nomenclature (writing formulas and names) Balancing Equations Gram / Mole / Atom / Molecule conversions. Predicting Charges on Monatomic Ions KNOW THESE !!!!.

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Binary Molecular compounds

Binary Molecular compounds. How to identify them. As the name might suggest ( BI nary ), these compounds contain exactly two elements. In this class both of these elements will be non-metals.

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LiI

LiI. Lithium iodide. CaS. Calcium sulfide. Na 2 S. Sodium sulfide. BaCl 2. Barium chloride. Al 2 O 3. Aluminum oxide. Sr 3 N 2. Strontium nitride. ClF 3. Chlorine trifluoride. CO. Carbon monoxide. CBr 4. Carbon tetrabromide. N 2 O 4. Dinitrogen tetroxide. PI 5.

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Compounds and Their Bonds

Compounds and Their Bonds. Covalent Compounds. Covalent Bonds. Formed between two nonmetals ( anions ) Electrons are shared. Learning Check. Indicate whether a bond between the following would be 1) Ionic 2) covalent ____ A. sodium and oxygen ____ B. nitrogen and oxygen

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Assignment # 32

Assignment # 32. Polarity & Naming Covalent Compounds. There can be UNEQUAL sharing of electrons in a bond. DRAW the Lewis Dot Structure for: HF. Polarity of Bonds Electronegativity ? + and ? - Dipoles. BOND TYPE BY ELECTRONEGATIVITY 0-0.4 nonpolar >0.4 is polar ?2.0 is ionic.

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Assignment #33

Assignment #33. Polarity & Naming Covalent Compounds. There can be UNEQUAL sharing of electrons in a bond. DRAW the Lewis Dot Structure for: HF. Polarity of Bonds Electronegativity ? + and ? - Dipoles. BOND TYPE BY ELECTRONEGATIVITY 0-0.4 nonpolar >0.4 is polar ?2.0 is ionic.

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Formal Charge: How to tell if a Lewis Diagram is Correct

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Covalent Compounds

Covalent Compounds. Lewis Dot Structures & Naming. 4. Turn pairs of shared e- into ( ). Drawing Lewis Dot Structures Covalent compounds. 1. Figure valence e- for each atom. 2. Draw Lewis Dot Structure. 3. Combine atom so each has 8 e-. exception - H - needs 2e- only. H. H. H. O.

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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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Naming Covalent compounds

Naming Covalent compounds. Covalent Bonds. Covalent bonds result from the sharing of electron pairs between two atoms. Covalent bonds always form between two nonmetals. Covalent Bonding. Naming Covalent Compounds. Covalent compounds are named using prefixes to indicate the number of atoms.

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Naming Molecular Compounds

Chemical Bonding. Naming Molecular Compounds. Molecular Nomenclature. Prefix System (binary compounds) 1. Less e - neg atom comes first. 2. Add prefixes to indicate # of atoms. Omit mono- prefix on first element. 3. Change the ending of the second element to - ide. PREFIX

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Nomenclature

Nomenclature. Covalent Naming and Formula Writing. Molecular Nomenclature. Prefix System (binary compounds) 1. Less e - neg atom comes first. 2. Add prefixes to indicate # of atoms. Omit mono- prefix on first element. 3. Change the ending of the second element to -ide.

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