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How to Write the Name for SO3

Learning to name chemical compounds requires that you:

  • Determine the type of compound you are working with.
  • Apply the rules for naming that type of compound.
  • Practice until it becomes second nature.
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Get more practice naming compounds.

For SO3 use the hints and resources below to help write the name.

Hint for Naming SO3

Two non-metals = molecular. We use prefixes!

Name the first element as found on the Periodic Table.

Write the correct prefix and then replace the ygen in Oxygen with ide.

mono di tri tetra penta hexa hepta octa non dec
1 2 3 4 5 6 7 8 9 10

SO3 Resources