Science(Acids and bases)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Give 2 examples of everyday acids | Lemon juice(citric acid) and Rain water(carbonic acid)
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Give two examples of everyday bases | Bleach(calcium carbonate(CaCO3) and Indigestiosn tablets(Limewater (Ca(OH)2))
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What is an indicator? | Substances which change colour depending on whether they are in an acidic or basic substance
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What colour does litmus paper turn when in a base? | Blue
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What is the pH scale? | It indicates the acidity or basicitiy of a solution, it runs from 0 to 14
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Red on the pH scale is... | Highly acidic
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Yellow on the pH scale is... | Nuetral
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Purple on the pH scale is... | Highly alkaline
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An acid and a base --> | Salt and water
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An acid and a carbonate --> | salt and water and carbon dioxide
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What is a titration? | Titrations allow you to find out exactly how much an acid is needed to neutralise a base
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Hyrdocloric acid + sodium hydroxide ---> | Sodium chloride and water
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HCl + NaOH ---> | NaCl = H2O
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Zinc = hydrocloric acid ---> | Zinc chloride + hyrdogen
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Zn + 2HCl ---> | ZnCl2 + H2
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Created by:
Chimozukee
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