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Naming Molecular Compounds

When we have a non-metal and a non-metal we have a molecular compound.

Non-Metal + Non-Metal = Molecular (sometimes called Covalent)

For example,
write the formula for:
  • CO2
  • N2O
  • CCl4

Practice: The key to success.

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Keys for Naming Molecular Compounds:

  • Write the name for both elements.
  • Change the ending of the second element to ide.
  • Place prefixes in front of each element based on the number of atoms present.
  • The prefix 'mono' is only used on the second non-metal in the chemical formula.
  • There shouldn't be two vowels in a row. For example, when you have 'mono' in front of 'oxide' it is written 'monoxide', not 'monooxide'.
mono di tri tetra penta hexa hepta octa non dec
1 2 3 4 5 6 7 8 9 10

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