Covalent and ionic review do this first!!!

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Good to review ionic and covalent compound formation.

Good to review ionic and covalent compound formation.

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  • 1. Writing Covalent & Ionic Compounds You have to master this or you cannot do molar mass correctly.
  • 2. Covalent Rules for Naming
    • Covalent naming has nothing to do with ion chart.
    • Use the following chart of prefixes for the subscript.
    Mono = 1 Di = 2 Tri = 3 Tetra = 4 Penta = 5 Hexa = 6 Hepta = 7 Octa = 8 Nona = 9 Deca = 10
  • 3. Name the following.
    • CCl 4
    • NO 2
    • PCl 3
    • CO 2
    • CO
    • H 2 O
    • N 3 I 7
    • Carbon tetrachloride
    • Nitrogen dioxide
    • Phosphorus trichloride
    • Carbon dioxide
    • Carbon monoxide
    • Dihydrogen monoxide
    • Trinitrogen heptaiodide
  • 4. Now lets try some Ionic Compounds & Naming
  • 5. COMBINE magnesium and nitrogen Mg +2 N -3 Mg 3 N 2 magnesium nitride Flip flop the charges and turn them into subscripts.
  • 6. K +1 SO 4 -2 Remember, in a Polyatomic ion all the atoms act as one! Even the subscripts!!! If they are already there, they stay there! K 2 SO 4 potassium sulfate potassium and sulfate
  • 7. aluminum and sulfate Al +3 SO 4 -2 Al 2 SO 4 3 ( ) aluminum sulfate How do we separate the subscripts so they look separate?
  • 8. Sample problems 1. Ammonium and chlorine 2. Aluminum and selenate 3. Lead II and bicarbonate 4. Mercury I and phosphate
  • 9. answers 1. NH 4 Cl Ammonium chloride 2. Al 2 (SeO 4 ) 3 Aluminum selenate 3. Pb(HCO 3 ) 2 Lead II bicarbonate 4. (Hg 2 ) 3 (PO 4 ) 2 Mercury I phosphate