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Warm-up Write the formulas for

strontium oxide iron (III) oxide. SrO Fe 2 O 3. Warm-up Write the formulas for. Ch. 7: Chemical Formulas and Names. Traditional Naming for Molecular Compounds. Binary Molecular Compounds. Made of two nonmetals formula does not always show simplest ratio

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Warm-up Write the formulas for

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  1. strontium oxide iron (III) oxide SrO Fe2O3 Warm-up Write the formulas for

  2. Ch. 7: Chemical Formulas and Names Traditional Naming for Molecular Compounds

  3. Binary Molecular Compounds • Made of two nonmetals • formula does not always show simplest ratio • formula shows actual composition of molecule B2H6 BH3

  4. Naming Molecular Cmpds • less electronegative element – 1st • given a prefix only if there is more than one atom • more electronegative element – 2nd • prefix indicating number of atoms (even if there is just 1 atom) • root of name • -ide ending • a or o is dropped at end of prefix if root of element is a vowel

  5. Prefixeslisted on the back of the periodic table

  6. PF5 phosphorus pentafluoride XeF4 xenon tetrafluoride CCl4 carbon tetrachloride Practice Naming

  7. dihydrogen monoxide H2O phosphorus pentachloride PCl5 sulfur dioxide SO2 carbon dioxide CO2 dinitrogen pentoxide N2O5 sulfur hexafluoride SF6 Writing Formulas

  8. Practice Naming • BCl3 • Boron trichloride • B2O3 • Diboron trioxide • N2O • Dinitrogen monoxide

  9. SF4 NO ClF3 dihydrogen monoxide phosphorus pentachloride sulfur dioxide Practice Naming Writing Formulas • carbon dioxide • dinitrogen pentoxide • Sulfur hexafluoride

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