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Identify each as a pure substance or mixture. Include a reason for each.

  1. Lettuce and tomato salad
  2. Air
  3. Wood shavings
  4. Pond water
  5. Chalk
  6. Sugar water

Verified Answer :

  1. Mixture--Lettuce AND tomato
    2. Mixture-- Air consists of many different elements and gasses
    3. Pure-- You aren't changing the substance of wood by shaving it, but if you were thinking from a makeup level it would be a mixture to begin with
    4.Mixture-- There is more than just water in pond water...bacteria and such.
    5. Not sure--I might say pure but I don't know for sure
    6. Mixture-- Sugar AND water

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