Elements Compounds And Mixtures Quiz For Grade 7th

14 Questions | Total Attempts: 28269

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Elements Compounds And Mixtures Quiz For Grade 7th

Prepare yourself to take this "Elements compounds and mixtures quiz for grade 7th. " We came to know the difference between a mixture, compound, and element in chemistry class. A compound is a substance made up of two or more elements, whereas an element is a substance that cannot be split into simpler substances. Test out how much you remember about the topic by taking up the test below. All the best!


Questions and Answers
  • 1. 
    An alloy is:
    • A. 

      A compound

    • B. 

      A solution of metals

    • C. 

      A solution of gases

  • 2. 
    Na is the chemical symbol for:
    • A. 

      Sodium

    • B. 

      Tin

    • C. 

      Nebraska

  • 3. 
    C is the chemical symbol for:
    • A. 

      Calcium

    • B. 

      Carbon

    • C. 

      Chlorine

  • 4. 
    A mixture is two or more substances. It __________ be separated.
    • A. 

      Can

    • B. 

      Can not

  • 5. 
    Are mixtures chemically combined?
    • A. 

      Yes

    • B. 

      No

  • 6. 
    An Element is a simple, pure substance. It __________ be separated?
    • A. 

      Can

    • B. 

      Can not

  • 7. 
    A compound __________ be separated?
    • A. 

      Can

    • B. 

      Can not

  • 8. 
    Are compounds chemically combined?
    • A. 

      Yes

    • B. 

      No

  • 9. 
    Carbon Dioxide (CO2) is an ELEMENT?
    • A. 

      True

    • B. 

      False

  • 10. 
    Elements, compounds, and mixtures are pure substances.
    • A. 

      True

    • B. 

      False

  • 11. 
    Colloids are mixtures that will settle out.
    • A. 

      True

    • B. 

      False

  • 12. 
    The chemical symbol for Mercury is HG.
    • A. 

      True

    • B. 

      False

  • 13. 
    Check 4 ways to speed up dissolving:
    • A. 

      Stirring

    • B. 

      Boiling

    • C. 

      Freezing

    • D. 

      Heating

    • E. 

      Filtering

    • F. 

      Crushing

    • G. 

      Burning

    • H. 

      Nothing

  • 14. 
    What kind of reaction is it when the ice melts?
    • A. 

      Endothermic

    • B. 

      Exothermic

    • C. 

      None of these

    • D. 

      None of these

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