2/17/11

Post date: Feb 17, 2011 2:39:4 PM

Bell Ringer: Draw the structural formula for C Cl4

    • How to name a compound when you have the formula (using example of CO2)

      • Decide whether the compound is ionic or covalent

        • ionic - one element is from the left side of the periodic table

        • covalent - all elements are from the right side of the table

        • C and O are both on the right side of the table, so this is a covalent compound

      • Write the names of the elements in the same order as they appear in the formula

        • Carbon Oxygen

      • Change the ending of the right-most element to "-ide"

        • Carbon Oxide

      • If the compound is ionic, you're done (for now)!

        • Not ionic, so not finished!

      • If the compound is covalent, use prefixes (see below) before names of elements to tell how many atoms of each are in one unit of the compound

          • One exception: Never use mono with the first element. If there is only one atom of the first element, don't write and prefix with it

        • Carbon dioxide

    • Number prefixes:

  • Naming Covalents Homework (due 2/18/11)

      • Complete the following table with either the name or the formula of the compound