Science - Acids and Bases

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Author:
mshowley
ID:
149999
Filename:
Science - Acids and Bases
Updated:
2012-04-25 07:40:41
Tags:
Acids Bases
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Description:
Acids and Bases
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  1. List the properties of acids
    Acids turn blue litmus paper red

    Acids cancel the effects of bases
  2. Give examples of acids
    • Lemon juice
    • Coke
    • Vinegar
    • Hydorchloric Acid
    • Sulphuric Acid
  3. List the properties of bases
    Bases turn red litmus paper blue

    Bases cancel the effect of acids
  4. State examples of bases
    • Toothpaste
    • Bleach
    • Washing soda
    • Sodium hydroxide
    • Calcium hydroxide
  5. What is an alkali?
    This is a base that dissolves in water
  6. State the function (job) of an indicator
    To tell us the pH of a substance
  7. What is a neutral substance?
    It is not an acid or a base
  8. What is the pH Scale?
    This is used to measure the strength of an acid or a base
  9. State whether a solution is neutral, acidic or basic when a solution has a pH greater than 7
    Base
  10. State whether a solution of neutral, acidic or basic when a solution has a pH of 7
    Neutral
  11. State whether a solution is neutral, acidic or basic when a solution has a pH less than 7
    Acid
  12. What colour change is observed when litmus paper is put into an acid?
    It changes from blue to red
  13. What colour change is observed when litmus paper is put into a base?
    It changes from red to blue

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