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Naming Covalent Compounds: Traditional vs. Stock Systems

Learn how to name covalent compounds in two different systems - Traditional and Stock. Discover the rules, exceptions, and prefixes for naming binary covalent compounds accurately.

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Naming Covalent Compounds: Traditional vs. Stock Systems

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  1. Naming Covalent Compounds Binary Covalent Compounds

  2. Two Systems of Naming • Traditional System • Place least electronegative element first • Higher electronegative element second and has “ide” ending • Use prefixes to give number of atoms • Exceptions • H2O (not dihydrogen monoxide) • O2 (not dioxygen) • NH3 (not nitrogen trihydride)

  3. Prefixes for Traditional System

  4. Stems reminder...

  5. Traditional Naming Dichlorine trioxide Sulfur dioxide Dinitrogen tetrahydride Nitrogen monoxide Nitrogen dioxide Dinitrogen monoxide

  6. Two Systems of Naming • Stock System • Place least electronegative element first • Determine its oxidation state (apparent charge) • Rules: F-1 (Halides), O-2 • Use Roman Numerals to indicate this oxidation number • Higher electronegative element second and has the “ide” ending

  7. Stock System Names • CO • NO • NO2 • NO3 • N2O5 • PCl3 • SiH4 Carbon (II) oxide Nitrogen (II) oxide Nitrogen (IV) oxide Nitrogen (VI) oxide Nitrogen (V) oxide Phosphorus (III) chloride Silicon (IV) hydride

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