Syllabus     |   |    Next Section

Learning Plan

  1. Watch the video on writing formulas for acids and bases

  2. Review Essential Information on formula writing for acids and bases.

  3. Correctly name ten in a row!

Once you get ten in a row, return to the Syllabus or continue to (Cumulative Practice #3).

Essential Information

Formula Writing Rules:
    Hydro + stem + ic
  1. Write H.
  2. Use the stem to find element name on the periodic table.
  3. Balance the charges.
    Stem + ic
  1. Write the ion: stem + ate
  2. Look up ion on Common Ion Table.
  3. Write H and then the ion formula
  4. Balance the charges.
    Stem + ous
  1. Write H.
  2. Write the ion: stem + ite
  3. Write H and then the ion formula.
  4. Balance the charges.


Naming Bases: Common bases contain the OH- (hydroxide) ion. They are named just like ionic compounds. For example, NaOH is called Sodium hydroxide. NH3, Ammonia, is an important exception.