Nomenclature - Compound Formulas to Names

This is a basic exercise in naming simple compounds. Since its effective use requires analysis of text input there are some basic rules:

  • This page does not contain any transition elements and, thus, Stock notation is not used.
  • Spelling matters very much. No effort has been made to analyze input against possible spelling errors, so double check before entering a name.
  • Capitalization does not matter.
  • For those combinations for which prefixes are not needed,e.g. CaCl2, their use will result in an error.


1. The user should refer to periodic tables or other sources for spelling of elements and ions.
2. Pressing "New Compound" will display a formula to the right of the table.
3. Enter the name of the compound in the answer cell and press "Check Answer."
4. Pressing the "Show Answer" will cause the correct answer to appear and you will no longer be able to submit an answer for that problem.

Write the name for this compound:


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