9-21-11-PT - 9-21-111Compounds and MoleculesLynn A....

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Unformatted text preview: 9-21-111Compounds and MoleculesLynn A. MeltonUniversity of Texas at DallasSeptember 21, 201108-26-112Why tinker with tinketoys?•Fundamental Concepts of Chemistry1.Atoms2.Bonding/Molecules/Reactions3.Structure/Properties–Activity of molecule derives from its structureDefinitions•Compound -- a substance composed of two or more elements combined in a specific ratio and held together by chemical bonds•Molecule – a neutral combination of at least two atoms in a specific arrangement (ratio?) held together by chemical bonds9-21-113Definitions•Ionic Compound – a compound that consists of cations and anions [which may themselves be either ions of atoms or compounds]• Examples: NaCl, MgCO3, NH4NO39-21-114Understanding Ionic Compounds9-21-115Essential point: “No Na+ion in NaCl is associated withjust one particular Cl-ion.”Understanding Ionic Compounds9-21-116Note: In aqueous solution, the ions are surrounded by water.Understanding Ionic Compounds•The chemical binding in an ionic compound...
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This note was uploaded on 10/15/2011 for the course MISC. 101 taught by Professor Multiple during the Spring '11 term at University of Texas at Dallas, Richardson.

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9-21-11-PT - 9-21-111Compounds and MoleculesLynn A....

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