Ch 2_slides with answers_011312

Ch 2_slides with answers_011312 - single group(unit when...

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Let’s count some particles Co 60 Cl 37 U 238 Cobalt-60 Chlorine-37 anion Uranium-238 # protons # electrons # neutrons 27 27 60 – 27 = 33 17 18 37 – 17 = 20 92 92 238 – 92 = 146 Cu 2+ 63 Copper-63 cation 29 27 63 – 29 = 34 Cu 2+ 65 Copper-65 cation 29 27 65 – 29 = 36
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2 Naming Examples Name the following compounds: KCl CaBr 2 Write formulas for the following : barium hydride aluminum sulfide
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3 Naming Examples Name the following compounds: CuCl MnO 2 Write formulas for the following : vanadium(V) fluoride tin(IV) bromide
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4 Examples • Name the following compound: BF 3 • Name the following compound: I 2 O 7 • Write the formula for: phosphorus trichloride • Write the formula for: dinitrogen trioxide
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5 There are many polyatomic ions that are referred to as a
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Unformatted text preview: single group (unit) when naming a compound. Polyatomic Ions 6 Ionic Compounds with Polyatomic Ions • Writing names and formulas is exactly the same as for binary ionic compounds… – cation is named first, anion is named second – multiples of the ions are used to ensure charge neutrality • Example: – Na 2 SO 4 … 2Na + + SO 4 2- sodium sulfate – manganese(II) hydroxide … Mn 2+ + 2OH- Mn(OH) 2 – KHSO 4 … K + + HSO 4- potassium hydrogen sulfate – ammonium sulfide … 2 NH 4 + + S 2– (NH 4 ) 2 S – FePO 4 ... Fe 3+ + PO 4 3- iron(III) phosphate – aluminum acetate … Al 3+ + 3 CH 3 COO – Al(CH 3 COO) 3...
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Ch 2_slides with answers_011312 - single group(unit when...

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