Acids, Bases and Salts

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9 Terms

1
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What colour would a strong acid appear with univeral indicator and what pH does it have?

Red , pH 1-2

2
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What colour would a strong alkali appear with univeral indicator and what pH does it have?

Purple pH 13-14

3
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What colour would a neutral substance appear with univeral indicator and what pH does it have?

Green, pH 7

4
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What ions do acids and alkalis contain?

Acids: H+ (Hydrogen ions)

Alkalis: OH- (Hydroxide ions)

5
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What is made when an acid reacts with a metal?

A salt and hydrogen

6
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What would you see when an acid reacts with a carbonate?

Fizzing because carbon dioxide is made

7
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What is made when an acid reacts with a base?

A salt and water

8
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What is the ionic equation for neutralisation?

H+ + OH- → H2O

9
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How would you test to identify sulfate ions?

Add barium chloride, a white precipitate should be seen