Acid and Alkali test

    Cards (12)

    • Red Litmus paper was placed into a solution.
      The red litmus paper turned a blue colour.
      This means that the solution is...
      alkaline
    • Describe an indicator
      Different indicators change colour at different pH levels.
    • Magnesium Oxide + Hydrochloric acid =
      magnesium chloride + water
    • Which equipment is used to accurately measure the mass of a solid?
      Balance
    • A solution is stored in a bottle with a corrosive hazard symbol on it. This solution is...
      Strongly acid or strongly alkaline
    • What technique is sued to separate water from copper sulfate solution?
      Evaporation
    • Universal Indicator would be more appropriate to measure pH that litmus paper because....
      Universal Indicator tells you precisely which pH from 1 - 14 whereas litmus paper only tells you about how acidic or alkaline.
    • Describe a salt
      When the hydrogen in an acid is replaced by a metal.
    • What is the difference between pH 1 and pH 3?
      pH 1 is 100 times more acidic that pH 3
    • State what the arrow in a word equation represents
      A chemical reaction taking place
    • _____+ _________= calcium chloride + water + carbon dioxide
      carbonate + hydrochloric acid
    • Write a word equation to show the neutralisation reaction between sodium hydroxide and nitric acid
      sodium hydroxide + nitric acid = sodium nitrate + water
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