Elements , compounds and mixtures

    Cards (8)

    • In all elements all of the atoms are the same
    • compounds 

      contain two or more different elements , chemically combined in fixed proportion
    • compounds usually have different properties to the elements there made from
    • how do you separate compounds?
      chemical reactions
    • mixture 

      different elements or compounds that are not chemically combined
    • how do you separate a mixture?
      physical separation
    • Molecules 

      any elements that are chemically combined , even the same elements
    • Is 02 a molecule?
      yes
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