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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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    Covalent and ionic review do this first!!! Covalent and ionic review do this first!!! Presentation Transcript

    • Writing Covalent & Ionic Compounds You have to master this or you cannot do molar mass correctly.
    • 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
    • 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
    • Now lets try some Ionic Compounds & Naming
    • COMBINE magnesium and nitrogen Mg +2 N -3 Mg 3 N 2 magnesium nitride Flip flop the charges and turn them into subscripts.
    • 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
    • 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?
    • Sample problems 1. Ammonium and chlorine 2. Aluminum and selenate 3. Lead II and bicarbonate 4. Mercury I and phosphate
    • 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