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Unformatted text preview: solut ions Nonconductor Conductor · Rate of chemical react ions Usually slow Usually fast · Forces between mo lecules · Physical states Examples: 1. Ident ify each co mpound below as organic or inorganic: A) CaCl2 B) C4H10 C) C2H5Cl D) Na2CO3 2. Match the fo llowing properties with the compounds ethane, C2H6 or sodium bromide, NaBr. a) bo ils at –89°C b) burns vigorously c) disso lves in water d) solid at 250°C 2 Chemistry 52 Chapter 19 STRUCTURE OF ORGANIC COMPOUNDS
· An expanded structural formula shows all the atoms present in a mo lecule and the bonds that connect them together. For example: H H
½ H ¾ C ¾ C ¾ O ¾ H ½
½ H H (Ethanol) · A condensed structural formula shows the arrangement of the atoms, but shows each carbon atom and its attached hydrogen atoms as a group. For example: CH3 ¾ CH2 ¾ OH H
½ H ¾ C ¾ = CH3 ¾
½ H (Ethanol) H
¾ C ¾ = ¾ CH2 ¾
½ H · A st ick formula is a shorthand method of showing large and co mplex mo lecules easily. In these d...
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