Molecules and Compounds Worksheet - Answer Key

 

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  1. What is a molecule?

    A molecule is made up of two or more atoms.  These atoms can be the same or different elements.

    2.  

     

  2. What is a compound?

    A compound is made up of two or more atoms of different elements.

    3.  

     

  3. Molecules and compounds are held together by bonds between atoms.

    4.  

     

  4. Identify the following as a compound, a molecule or both.

      5.  

    1. KF
      both

      2.  

    2. HNO3
      both

      3.  

    3. CH3OH
      both

      4.  

    4. O2
      molecule

      5.  

    5. H2O
      both

      6.  

    6. N3-
      molecule

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