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  1. Jan 2026
  2. chem.libretexts.org chem.libretexts.org
    2.E: Matter, Measurement, and Problem Solving (Exercises)
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    1. ainieto 27 Jan 2026
      A pure substance is made up of only one type of particle. A mixture is a substance composed of two or more particles. An element is a substance that cannot be chemically broken down into simpler substances. A compound is a substance composed of two or more elements.

      different classifications

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    chem.libretexts.org/Courses/California_State_University_Chico/General_Chemistry_I_(CSU_Chico)/02:_Measurement_and_Experimentation_in_Science/2.E:_Matter_Measurement_and_Problem_Solving_(Exercises)