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Acids and Alkalis
Game Code: 792898
English
21
Public
KS3 revision on acids and alkalis
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What colour does a strong acid turn in universal indicator?
Red
15
What colour does a strong alkali turn in universal indicator?
Purple
15
Why is litmus paper a bad indicator?
It doesn't tell the strength of the acid or alkali
15
What pH is neutral?
7
10
Is ethanoic acid a weak or strong acid?
Weak acid (Vinegar)
15
What colour would you expect lemon juice in universal indicator?
Orange/yellow
15
What colour would you expect drain cleaner to be in universal indicator?
purple
15
What could be used to neutralise excess stomach acid?
indigestion tablets
15
What would help a bee sting?
Baking soda or onion juice
15
is a wasp sting acidic or alkaline?
Akaline
15
What could a farmer put on his fields to neutralise soil pH?
Lime (Calcium Carbonate)
15
What would be an example of a strong acid?
Hydrochloric/Sulfuric acid
15
What pH is blood?
7 - it is neutral
15
What hazard symbol would you expect to find on a strong alkali?
Corrosive
15
What does dilute and concentrated mean?
Dilute is with water added
15
How would you describe an alkali to someone?
Soapy, slippery feel
15
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