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Acids and alkalis

  • Game Code: 1632153
  •  English    20     Public
    Year 7 and 8 quiz on the pH scale and common examples
  •   Study   Slideshow
  • A liquid has a pH of 3, is it an acid or an alkali?
    Acid
  •  15
  • A liquid has a pH of 13, what does that tell us?
    It's an alkali
  •  15
  • You are testing the pH of a liquid using litmus paper - it turns red. What is it?
    An acid!
  •  15
  • Your litmus paper turned blue, what must you be testing?
    An alkali!
  •  15
  • What pH range does an acid have?
    everything below 6.9!
  •  15
  • What pH range does an alkali have?
    everything above 7.1!
  •  15
  • Is lemon juice acidic or alkaline?
    Acidic
  •  15
  • What pH do you think stomach acid is?
    Between pH 1 and pH 2
  •  15
  • What does the H stand for in the pH scale?
    a Hydrogen ion, H+
  •  15
  • Do you think toothpaste is an acid or alkali?
    Alkali!
  •  15
  • If something tastes tangy is it acidic or alkaline?
    Acidic
  •  15
  • Baking soda and baking power are acidic or alkaline?
    Alkaline
  •  15
  • Which if these could have a pH of 12? Sulfuric acid or sodium hydroxide?
    Sodium hydroxide
  •  15
  • If you add water to an acid will the pH change?
    No! It stays the same!
  •  15
  • True or false: a strong acid is the same as a concentrated one.
    False!
  •  15
  • What do we call liquids that we use which change colour depending on pH?
    Indicators (example: universal indicator)
  •  15
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