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Table of Contents. Lecture/Lab/Activity Date Pg#. 22. The Periodic Table 9/24/10 47 23. Periodic Def & Trends 9/27/10 49 24. Electron config practice 10/4/10 51 25. Ions and Oxidation Numbers 10/5/10 53 26. Lewis Dot Diagram 10/6/10 54
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Table of Contents Lecture/Lab/Activity DatePg# 22. The Periodic Table 9/24/10 47 23. Periodic Def & Trends 9/27/10 49 24. Electron config practice 10/4/10 51 25. Ions and Oxidation Numbers 10/5/10 53 26. Lewis Dot Diagram 10/6/10 54 27. Intro to Chemical Bonding 10/7/10 57 28. Covalent Bonding 10/12/10 61 29. Ionic Bonding 10/14/10 61 30. Ionic vs. Covalent Lab 10/18/10 63 31. Metallic Bonding 10/19/10 61 32. Molecular Geometry 10/21/10 64 33. Writing Chemical Formulas 10/25/10 67 34. Naming Ionic Compounds 10/26/10 69 35. Ionic Compounds Puzzle 10/27/10 71 36. Naming Molecular Compounds 10/29/10 73 37.Acid Nomenclature 11/03/10 75 38. Organic Chemistry – Alkanes 11/04/10 77 39. Ionic & Covalent Review 11/08/10 79 40. Organic Chem–Alkenes&Alkynes11/09/10 81 Organic Chemistry Alkenes and Alkynes Geometric Isomers of Alkenes Addition Reactions Objective: The student will use IUPAC nomenclature rules to name Alkenes & Alkynes after completing the weekly quiz Agenda: Organic Chemistry– Lecture
Saturated and Unsaturated Compounds • Saturated compounds (alkanes) • maximum number of hydrogen atoms attached to each carbon atom • Unsaturated compounds • fewer hydrogen atoms attached to the carbon chain than alkanes • Unsaturated compounds contain double or triple bonds
Alkenes • Carbon-carbon double bonds • Names end in -ene • H2C=CH2 ethene (ethylene) • H2C=CH-CH3 propene (propylene) • cyclohexene
Alkynes • Carbon-carbon triple bonds • Names end in -yne • HC CH ethyne(acetylene) • HC C-CH3 propyne
Naming Alkenes and Alkynes • When the carbon chain has 4 or more C atoms, number the chain to give the lowest number to the double or triple bond. 1 2 3 4 CH2=CHCH2CH3 1-butene CH3CH=CHCH3 2-butene CH3CH CHCH3 2-butyne
Learning Check HA3 • Write the IUPAC name for each of the following unsaturated compounds: • CH3CH2C CCH3 CH3 • CH3C=CHCH3 2-pentyne 2-methyl-2-butene 3-methylcyclopentene
Cis and Trans Isomers • Double bond is fixed • Cis/trans Isomers are possible
Hydrogenation • Adds a hydrogen atom to each carbon atom of a double bond H H Ni H H • H–C=C–H + H2 H–C–C–H H H ethene ethane
Products of Hydrogenation • Adding H2 to vegetable oils produces compounds with higher melting points • Margarines • Soft margarines • Shortenings (solid)