Chemistry

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What is limestone mainly made of?
Calcium carbonate
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What is limestone used for?
A building material and calcium oxide to make cement
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When does calcium carbonate decompose?
When heated to make calcuim oxide and carbon dioxide
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When carbonates react with acids what is produced?
A salt, water and carbon dioxide
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What does carbon dioxide turn limewater?
Cloudy
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What is calcium hydroxide solution called?
Limewater
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Why is limestone damaged by acid rain?
Because the calcium carbonate in the limestone reacts with the acid in the rain
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What does thermal decomposition of calcuim carbonate produce?
Calcium oxide and carbon dioxide
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When calcium oxide reacts with water what is produced
Calcium hydroxide
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What is calcium hydroxide used for?
Because its an alkali it can be used to neutralise acids
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When calcuim hydroxide reacts with carbon dioxide what is produced?
Calcium carbonate
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How do you make cement?
Limestone is mixed with clay and heated strongly in a kiln which is then ground up to make a fine powder
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How is mortar made?
By mixing cement and sand with water
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How is concrete made?
By mixing aggregate with cement, sand and water
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What is a disadvantage of quarrying limestone?
It can have negative impacts on the environment and on people living near to the quarries
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Other cards in this set

Card 2

Front

What is limestone used for?

Back

A building material and calcium oxide to make cement

Card 3

Front

When does calcium carbonate decompose?

Back

Preview of the front of card 3

Card 4

Front

When carbonates react with acids what is produced?

Back

Preview of the front of card 4

Card 5

Front

What does carbon dioxide turn limewater?

Back

Preview of the front of card 5
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