Limestone and building materials

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  • Created by: Heather
  • Created on: 23-05-14 20:16
What is limestone mainly made of? CHemical and word symbol,
Calcium Carbonate, CaCO3
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What is the reaction called when calcium carbonate is broken down by heat?
Thermal decompositon,
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When Calcium Carbonate is decomposed, what are the two products? Chemical and word?
Calcium Oxide, CaO + Carbon dioxide, CO2
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Give an example of another carbonate which works in the same way?
Cooper carbonate, Sodium carbonate, magnesium carbonate,
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If metals are high up in the reactivity series and are carbonates, what do they need to decompose?
Lots of energy,
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What colour is calcium oxide when hot and cold?
Hot-yellow, Cold-white,
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What is the symbol for calcium hydroxide?
Ca(OH)2
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How is calcium hydroxide produced? Word and chemical?
CaO, Calcium oxide, + H2), Water,
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What is the function of hydroxide and why is it able to do this?-Chemical property?
To neutralise excess acidity in lakes and soils affected by acid rain as it is an alkali,
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When carbonates react with acids, what are produced?
Carbon dioxide, salt and water,
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When calcium carbonate comes into contact with acid rain, waht can be seen?
They fizz when in contact and CO2 is released which can be detected with limewater,
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How is cement made?
By heating powdered limestone with clay
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How is mortar made and its job?
Used to join bricks together-made by mixing cement(clay + powdered limestone) with sand and water
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How is concrete made?
By mixing cement (clay + powdered limestone) with sand, water and crushed rock,
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What are the advantages of the limestone industry?
Limestone is a valuable natural material used to make lots of useful things like glass and concrete. -It provides employment from local towns in quarrying, -Provides leisure after quarrying, -Money goes to towns around quarry,
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What are the disadvantages of the limestone industry?
-Quarries are visible from long distances and may damage the view and landscape, -Creates noise and dust pollution, -Creates heavy traffic which releases more CO2, -Destroyes animal habitats, -Damages people's quality of life, -Lots of dust,
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Other cards in this set

Card 2

Front

What is the reaction called when calcium carbonate is broken down by heat?

Back

Thermal decompositon,

Card 3

Front

When Calcium Carbonate is decomposed, what are the two products? Chemical and word?

Back

Preview of the front of card 3

Card 4

Front

Give an example of another carbonate which works in the same way?

Back

Preview of the front of card 4

Card 5

Front

If metals are high up in the reactivity series and are carbonates, what do they need to decompose?

Back

Preview of the front of card 5
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