Covalent Nomenclature - Currituck County Schools

Covalent Nomenclature - Currituck County Schools

Covalent Nomenclature Naming Molecular Compounds Review How do we identify ionic formulas? How do we identify covalent formulas? Ionic formulas start with metals (or NH4+1) Covalent formulas contain only non-metals or metalloids. How do we name ionic compounds? Identify the compound as binary or ternary.

Identify the metal as fixed charge or variable charge. If the compound is binary, ends in ide. If the compound is ternary, name the anion appropriately. Naming Molecular Compounds All the molecular compounds youll be asked to name are binary. Molecular compounds w/ more than 2 elements are usually organic. Organic compounds have their own special naming system. Atoms in molecules dont the number of each atom:

mono = 1 di = 2 tri = 3 tetra = 4 penta = 5 hexa = 6 hepta = 7 octa = 8 nona = 9 deca = 10 Naming Molecular Compounds Prefix for first element in compound.

Omit if its mono. Name first element. Prefix for second element in compound. Give stem of second element followed by suffix ide. Examples: CO = carbon monoxide CO = carbon dioxide 2 N2O = dinitrogen monoxide Details and Exceptions If the last letter of the prefix and the first

letter of the element are both vowels, drop the last letter of the prefix. CO = carbon monoxide, not carbon monooxide N2O5 = dinitrogen pentoxide, not dinitrogen pentaoxide Some compounds are known only by their common names H2O = water NH3 = ammonia CH4 = methane Writing Formulas From

Names Write symbols in the same order they appear in the name. Use prefixes to determine subscripts. Metalloids are not metals. Compounds that start with metalloids are named as molecular compounds. Naming Molecular Compounds What are the names of the following molecular compounds? NO2 SO3

SiO2 NO P2O5 S4N4 nitrogen dioxide sulfur trioxide silicon dioxide nitrogen monoxide diphosphorus pentoxide tetrasulfur tetranitride Writing Formulas From Names What are the formulas of the following

molecular compounds? carbon tetrachloride phosphorus trichloride selenium dibromide dinitrogen tetroxide sulfur dioxide xenon tetrafluoride diantimony trioxide CCl4 PCl3 SeBr2 N2O4 SO2 XeF4 Sb2O3

Recently Viewed Presentations

  • Vision - Kashan University of Medical Sciences

    Vision - Kashan University of Medical Sciences

    Ciliary process at the base of the iris produces aqueous humor. Scleral venous sinus returns aqueous humor to the blood stream. Positive pressure from aqueous humor, generally above 6 mm Hg, is needed to keep the retina attached to the...
  • Slayt 1 - kaldirmakuvveti

    Slayt 1 - kaldirmakuvveti

    Bu icadı sayesinde üniversiteye ömür boyu atanır ve maaşı iki misline çıkar. Galileo bir kitap çıkarır ve bu kitap sayesinde çok önemli yerler kazanır. Pisa üniversitesine matematik profesörü olarak atanır.
  • Copyright For Undergraduates:

    Copyright For Undergraduates:

    Unit 2 and 3 covered copyright history: we started with antiquity, St. Columba and St. Finnian, through Tudor England, Statute of Anne, the first American copyright act up until 1976. ... USPTO Kids. Covers patent and trademark but can be...
  • Inuit - cpb-ca-c1.wpmucdn.com

    Inuit - cpb-ca-c1.wpmucdn.com

    Description of arctic . Topography: artic has lakes rivers oceans, tundra and large forests Vegetation: 1700 different kinds of plants start to grow in June in the tundra of artic. Climate: the winters are very cold and long, the summers...
  • So Tired of Church Everyone must submit to

    So Tired of Church Everyone must submit to

    4 The authorities are God's servants, sent for your good.But if you are doing wrong, of course you should be afraid, for they have the power to punish you. They are God's servants, sent for the very purpose of punishing...
  • THE NERVE IMPULSE - saburchill.com

    THE NERVE IMPULSE - saburchill.com

    * * * * * * * * * * * * * * * * * Cells and membrane potentials All animal cells generate a small voltage across their membranes There are a large amount of small organic molecules...
  • The ABC's of RFP's

    The ABC's of RFP's

    accordance with the requirements of General Municipal Law §103-g ("The Iran Divestment Act of 2012"), the bidder is required to include with its bid either (1) the "Certification of Compliance with the Iran Divestment Act" or, in the case where...
  • The Research Paper

    The Research Paper

    3 types of quote lead-ins. Somebody says. In "Maggie Girl of the Streets" Crane's character says, "_____" Blended Lead-In . Take you own words, put the quote in the middle and end with your words