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Nomenclature Flowchart

Nomenclature Flowchart. Answer the questions, find the rules, name the compound or determine the formulas. Is the compound 2 elements only – one is a metal?. Is the metal group 1, 2, or Al, Zn, Ni, Ag?

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Nomenclature Flowchart

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  1. Nomenclature Flowchart Answer the questions, find the rules, name the compound or determine the formulas.

  2. Is the compound 2 elements only – one is a metal? • Is the metal group 1, 2, or Al, Zn, Ni, Ag? • Rule- metal gets metal name, nonmetal gets nonmetal name with …ide ending. Balance charges. • Examples • KCl Potassium chloride • Li2S Lithium sulfide • MgF2 Magnesium fluoride • ZnO Zinc oxide

  3. Or is it a transition or other metal? Rule- metal gets metal name, (Roman numeral for the charge of the metal atom), non metal gets nonmetal name with ide ending. Balance charges. Examples: CuBr Copper(I) bromide FeO Iron(II) oxide Au3N Gold(I) nitride SnI2 Tin(II) iodide

  4. Is the compound more than 2 elements, one is a metal or ion? • The compound contains a polyatomic ion. • Polyatomic ions must be memorized by name, chemical formula and charge. • Rule- metal gets the metal name,(charge if transition metal) followed by polyatomic ion name. Balance charges. • If polyatomic is the cation, than polyatomic ion name first, followed by nonmetal with ide ending, or name of the second polyatomic ion. Balance charges.

  5. Poly atomic ion examples: • Na2SO4 Sodium sulfate • Ca(ClO2)2 Calcium chlorite • Cr2CO3 Chromium(I) carbonate • Pb(OH)4 Lead(IV) hydroxide

  6. Is the compound 2 elements only- both are non metals? • Rule- first element gets nonmetal name, second element gets the ide ending. • Use prefixes to indicate number of each non metal atom in the compound. • Exception – if compound contains only one atom of the first element the mono is omitted. • Prefixes-Mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca.

  7. 2 non metal examples • P2S5 Triphosphorous pentasulfide • CCl4 Carbon tetrachloride • IF3 Iodine trifluoride • N2O Dinitrogen monoxide

  8. Are you given formula and you must provide the name? • Look at the name closely- it will follow the same format of either cation followed by anion or will have prefixes (slide 4). • If cation /anion- metal name for the cation, anion will be metal name if -ide ending, or polyatomic ion if it has -ate or -ite ending. • Remember to balance the charges.

  9. Naming Acids - recognized by H first element or in water (aq) • Rule- acid with no O atoms • Hydro_____ic acid • Rule –acid with O atom(s)- named for the polyatomic ion. • If –ate polyatomic than ______ic acid • If –ite polyatomic than ______ous acid.

  10. Acid examples • HCl Hydrochloric acid • HCN Hydrocyanic acid • HNO2 Nitrous acid • H3PO4 Phosphoric acid

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