separation techniques

• mixtures

  2 or more elements or compounds mixed but not chemically bonded 


  separating a mixture

  find a difference between the parts of the mixture e.g different boiling points
• chromatography

  separate a die into colours based on the different solubilites of each colour

  most soluble- travel furthest

  least soluble - travel least
• rf= distance travelled by colour

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  distanced travelled by solvent

  answer is NEVER bigger than 1