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Naming Compounds and Chemical Formulas

Naming Compounds and Chemical Formulas. Bonding – Octet Rule. Nomenclature . Roman numeral = charge Metals always (+) Written 1 st Nonmetals (-) in ionic bonding Exception NH 4 1+ (ammonium ion). Endings . ide = original element (nonmetal) ate and ite = polyatomic ions

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Naming Compounds and Chemical Formulas

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  1. Naming Compounds and Chemical Formulas

  2. Bonding – Octet Rule

  3. Nomenclature • Roman numeral = charge • Metals always (+) • Written 1st • Nonmetals (-) in ionic bonding • Exception NH4 1+ (ammonium ion)

  4. Endings • ide = original element (nonmetal) • ate and ite = polyatomic ions • 2 exceptions: CN1- (cyanide) and OH1- (hydroxide) Don’t confuse valence # with charge. Valence # is the number of electrons in the outer shell Charge is the transfer of electrons

  5. Acid endings • Hydro --- ic acid • Hydro --- ic becomes ide= original element (nonmetal) • ous acid • ous becomes itepolyatomic ion • ic acid • icbeomes ate polyatomic ion

  6. Examplesof Acids • Hydrosulfuric acid • H2S • Sulfurous acid • H2SO3 • H3P • Hydrophosphoricacid • H3PO4 • Phosphoric acid

  7. Examples of Covalent Compounds • Disulfur hexafluoride • S2F6 • Carbon monoxide • CO • P3O • Triphosphorus monoxide • C3Cl8 • Tricarbonoctachloride

  8. Examples of ionic compounds • Magnesium sulfide • MgS • Iron (III) sulfate • Fe2(SO4)3 • Na2O • Sodium oxide • Cu(NO3)2 • Copper (II) nitrate

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