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Which of the following compounds do you think are organic? vinegar gasoline olive oil acetone cork charcoal alcohol polyester wood propane wool plastic laundry detergent nylon paper rubber cotton nail polish Round-up weed motor oil leather killer All of the above compounds are organic! Some inorganic compounds include: table salt all metals ionic compounds metal alloys most “rocks” glass minerals concrete clay • Organic chemistry is the study of compounds that contain CARBON. • Almost all carbon-containing compounds are organic (both natural and synthetic) • Inorganic compounds generally DO NOT contain carbon Exceptions: CO, CO2, ionic carbonates (-CO3) are all inorganic • Carbon is very versatile due to its 4 valence electrons. (allows for 4 bonds) C + 4H H H C H H • Carbon is usually bonded to H, O or other non-metals • Carbon can bond with itself to form long chains of carbon atoms (polymers; eg: petroleum & plastics) • Organic compounds always have C before H in their formulas (eg: CH4) Hydrocarbons • Contain only C and H atoms polyethylene • • C5000H10000 (plastic) Hydrocarbons are flammable and many are used as fuels See table 5.8 (page 247 in textbook) or page 96 in workbook Alcohols • Contain C, H and O atoms • All alcohols are poisonous and flammable • See table 5.9 (page 248 in textbook) or page 97 in workbook Homework: Read Workbook Pages 95-97 Complete Workbook Pages 98-99