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  • 16-09-2016
  • Chemistry
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Why is CO2 a pure substance?

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Аноним Аноним
  • 16-09-2016
Two or more pure substances can be mixed together to form a mixture. An example of a mixture of two compounds is alcohol and water. An example of a mixture of elements and compounds is air. The major components of air are hydrogen, oxygen, nitrogen and carbon dioxide.
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