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Chapter 8

Chapter 8. Naming. Review Ionic Vs. Covalent. Ionic bond Covalent bond. Naming ionic compounds. Name cation 1 st Change ending of monatomic anion to –ide NaCl KF. Name the following. NaBr CaCl 2 K 2 O Mg 3 N 2. Ionic Compounds and Formula Units.

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Chapter 8

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  1. Chapter 8 Naming

  2. Review Ionic Vs. Covalent • Ionic bond • Covalent bond

  3. Naming ionic compounds • Name cation 1st • Change ending of monatomic anion to –ide • NaCl • KF

  4. Name the following • NaBr • CaCl2 • K2O • Mg3N2

  5. Ionic Compounds and Formula Units • All ionic compounds are neutral so total + must equal total – • Net charge of all ionic compounds is 0. • Calcium Chloride • Ca = • Cl =

  6. Write formulas for the following • Aluminum Sulfide • Sodium Phosphide • Calcium Nitride • Barium Oxide

  7. Naming with Polyatomic Ions • When formula includes a polyatomic ion: • Name cation 1st • Name polyatomic ion – DO NOT CHANGE ENDING!!!

  8. Name the following • KOH • Ca(NO3)2 • Na2SO4 • (NH4)3PO4

  9. Writing formulas from names • Figure out cation & charge • Figure out anion & charge • Ends in –ide = monatomic • Ends in –ate or –ite = polyatomic • Exceptions: hydroxide & cyanide • Crisscross to get formula

  10. Write formulas of the following • Aluminum Sulfite • Sodium Phosphate • Calcium Nitrate • Barium Oxide

  11. Naming with multiple oxidation numbers • Previous naming rules apply only to metals in the s block & transition metals with only one oxidation number • Ni 2+ , Zn 2+ , Al 3+ , Ag 1+ , Cd 2+ • Most transition metals & metals in the p block can have more than one oxidation number

  12. Which charge the metal ion has is indicated by roman numerals • Iron (II) Oxide • Copper (I) Chloride

  13. What is the oxidation number of the ions in the following? • FeS • CuCl • Hg2O • SnS2

  14. Name the following • Fe2O3 • CuCl2 • CoN • Hg3P2

  15. Write formulas for the following • Iron (III) Iodide • Titanium (III) Oxide • Chromium (III) Sulfate • Copper (I) Chlorite

  16. 8.2 Naming Molecules • Molecular Compounds = 2 or more elements joined by covalent bonds • 2 nonmetals • Binary compounds = • End in –ide • Carbon Dioxide

  17. Prefixes tell how many of each atom there are • Mono not used if there is only one of the first atom • CO2

  18. Name Me! • CO • H2O • Si3O6 • P2Cl5

  19. Use the name to write the formula! Carbon Tetrachloride Sulfur Hexaflouride Tetraphosphorus Decoxide Dinitrogen Monoxide

  20. Naming Acids • Acid = Produces H+ when dissolved in water • H + Halogen = binary acid (no oxygen in formula) • Hydro __________ ic acid • H + Polyatomic Ion = oxyacid (oxygen in formula) • Ion ending in –ite = _________ous acid • Ion ending in –ate = _________ic acid

  21. Name Me! • HCl • HBr • HNO2 • H3PO4

  22. Nitric Acid • Sulfuric Acid • Hydroiodic Acid

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