Chemical And Physical Changes

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Chemical And Physical Changes

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Questions and Answers
  • 1. 
    Milk turns sour. This is a .....
    • A. 

      Chemical change

    • B. 

      Chemical property

    • C. 

      Physical change

    • D. 

      Physical property

  • 2. 
    HCl being a strong acid is a __________.Wood sawed in two is _________.
    • A. 

      Chemical change, physical change

    • B. 

      Physical change, chemical change

    • C. 

      Chemical property, physical change

    • D. 

      Physical property, chemical change

    • E. 

      None of the above

  • 3. 
    A chemical property and a chemical change are the same thing.
    • A. 

      True

    • B. 

      False

  • 4. 
    Find the FALSE statement
    • A. 

      Elements are pure substances

    • B. 

      Compounds are mixtures

    • C. 

      Homogeneous mixtures look the same through-out the mixture

    • D. 

      heterogeneous mixtures look different through-out the mixture

  • 5. 
    Check all the physical changes
    • A. 

      Breaking glass

    • B. 

      Molding bread

    • C. 

      Boiling water

    • D. 

      Salt disolving

  • 6. 
    Check all chemical changes
    • A. 

      Sodium phosphate is soluable

    • B. 

      Rusting car

    • C. 

      Air reacting with paper

    • D. 

      Cutting grass

  • 7. 
    Define physical change
    • A. 

      A change in matter that does not change the identity of the matter

    • B. 

      Nothing changes the matter

    • C. 

      A change in matter that changes the identity of the matter

    • D. 

      A change in matter that explodes

  • 8. 
    Define chemical change
    • A. 

      A change in matter that does not change the identity of the matter

    • B. 

      Nothing changes the matter

    • C. 

      A change in matter that changes the identity of the matter

    • D. 

      A change in matter that explodes

  • 9. 
    Chemical and Physical changes are really the same.
    • A. 

      True

    • B. 

      False

  • 10. 
    Which of the following does Not signal a chemical change?
    • A. 

      Production of a gas

    • B. 

      Color change

    • C. 

      Production of light and heat

    • D. 

      Change in shape

  • 11. 
    Check all the changes that are not physical
    • A. 

      Acid digesting food

    • B. 

      Teeth grinding your food

    • C. 

      Dissolving sodium in water

    • D. 

      Boiling water

  • 12. 
    Which change is not chemical 
    • A. 

      Baking a cake

    • B. 

      Burning candle

    • C. 

      Evaporating water from an acid

    • D. 

      Explosion

  • 13. 
    What kind of change is it when matter changes states from a solid to a liquid to a gas? 
    • A. 

      Chemical

    • B. 

      Physical Physcial