Chemistry Review

10 Questions

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Questions and Answers
  • 1. 
    • A. 

      Wood can be burned in a fireplace.

    • B. 

      Wood is a solid that will float on water.

    • C. 

      The bark is a darker color than the inside.

    • D. 

      Wood can be chopped into smaller pieces.

  • 2. 
    • A. 

      Making ice cubes

    • B. 

      Toasting bread

    • C. 

      Slicing a carrot

    • D. 

      Boiling water

  • 3. 
    Dissolving sugar into sweet tea is an example of a
    • A. 

      Chemical change

    • B. 

      Physical change

    • C. 

      State of matter change

    • D. 

      Energy change

  • 4. 
    Which property of matter stays the same during both physical and chemical changes?
    • A. 

      Density

    • B. 

      State of matter

    • C. 

      Mass

    • D. 

      Color

  • 5. 
    • A. 

      Pouring vinegar onto baking soda

    • B. 

      Dropping an antacid into water

    • C. 

      Heating water to boiling

    • D. 

      Dropping Mentos into Diet Coke

  • 6. 
    O2 + 2H2 --> 2H2OIn this equation, the O2 is a
    • A. 

      Reactant

    • B. 

      Product

    • C. 

      Mixture

    • D. 

      Solution

  • 7. 
    Which statement is true about acids?
    • A. 

      Acids turn litmus paper blue.

    • B. 

      Acids are slippery and taste bitter.

    • C. 

      All acids can harm you.

    • D. 

      Acids have a pH below 7.

  • 8. 
    Common examples of bases include
    • A. 

      Lemons, vinegar and bleach

    • B. 

      Soap, ammonia and sodas

    • C. 

      Detergent, antacids and shampoo

    • D. 

      Oranges, tomatoes, and digestive juices

  • 9. 
    If a substance turns blue litmus paper red, and does not change red litmus paper, it is
    • A. 

      An acid

    • B. 

      A base

    • C. 

      Neutral

    • D. 

      It is not possible to determine

  • 10. 
    Predict the pH of lye, a strong base used in oven cleaners.
    • A. 

      2

    • B. 

      6

    • C. 

      8

    • D. 

      13