lecture2

8 naming simple compounds binary ionic compounds

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Unformatted text preview: unds Binary ionic compounds - monatomic cation, monatomic anion 1. cation named first, anion second 2. monatomic cation named same as metal 3. monatomic anion named by changing ending to -ide for group 1 and 2 metals, charge is equal to the group number 2+ for transition metals and some post-transition metals, more than one ion can form, i.e., Fe cations are named iron (II) and iron (III) FeCl2 is iron (II) chloride, FeCl3 is iron (III) chloride 2-4 3+ and Fe . These Chapter 2 Atoms, Molecules, and Ions for nonmetals, charge is 8 - group number (or 18 - group number) NaCl, MgO, K2S, CaI2 + - - - - - -2 - Polyatomic ions - pg. 66 NH4 , NO3 , SO4 , OH , CN , PO4 , CO3 , ClO3 Binary covalent compounds 1. more metallic element named first 2. second element named changing ending to -ide 3. numeric prefixes used; mono-, di-, tri-, tetra-, penta-, hexa- carbon dioxide, sulfur trioxide, xenon tetrafloride, phosphorous pentachloride Naming acids: No O: HCl hydrogen chloride becomes hydrochloric acid hydro(root)ic acid Contains O HClO3 becomes Chloric acid (no Hydro prefix) -ate becomes –ic per- prefix is kept, so hydrogen perchlorate is perchloric acid -ous becomes –ite hypo- prefix is kept, so hydrogen hypochlorite becomes hypochlorous acid. 2-5...
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