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Eighth Grade (Grade 8) Bonds and Mixing Questions

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Grade 8 Bonds and Mixing
Grade 8 Bonds and Mixing
How is a mixture different from a compound?
  1. A mixture has a chemical formula. A compound does not.
  2. Substances in a compound are chemically combined. The substances in a mixture are not.
  3. A compound is easier to separate than a mixture.
  4. A mixture forms with a chemical reaction. A compound does not.
Grade 8 Bonds and Mixing
Grade 8 Bonds and Mixing
Elements and compounds that have fixed compositions can be called
  1. mixtures.
  2. substances.
  3. alloys.
  4. aqueous solutions.
Grade 8 Bonds and Mixing
Grade 8 Bonds and Mixing
To separate a mixture of paper clips and sand, Joe should use
  1. wind separation.
  2. distillation.
  3. magnetic separation.
  4. decanting.
Grade 8 Bonds and Mixing
Grade 8 Bonds and Mixing
Grade 8 Bonds and Mixing
Grade 8 Bonds and Mixing
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