What is the the type of reaction called when limestone is broken down?
Thermal Decomposition
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How is calcium carbonate broken down?
IT is down on a large scale using a lime kiln
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What do metal carbonated decompose to?
The metal oxide and carbon dioxide when heated strongly enough.
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What are the products when zinc carbonate is heated strongly?
Zinc oxide and carbon dioxide.
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What do carbonated produce when they react with acid?
Salt, water and carbon dioxide gas.
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What is lime water?
Carbon hydroxide solution.
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What happens when lime water reacts with carbon dioxide?
It turns cloudy because it reacts with carbon dioxide to form insoluble calcium carbonate.
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Describe the 'limestone reaction cycle'
1. Calcium carbonate is heated to give off CO2 and CaO 2. CaO + H2O -> Ca(OH)2 3. Add more water to make calcium hydroxide solution 4. Add CO2 to solution to make calcium carbonate
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How is Cement made?
Limestone is mixed with clay and is heated very strongly in a kiln. The product is ground up to make a fine powder.
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How is mortar made and what is its used?
Cement is mixed with sand and water. Mortar is used to hold bricks and blocks in buildings.
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What is aggregate?
Crush rock
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What is a negative impact of quarrying limetsone?
Destroys environment and effects peple locally in a negative way.
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What is the problem with cement works?
The heating o limestone and clay requires large amount of energy. The works also need a lot of space.
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Other cards in this set
Card 2
Front
How is concrete made?
Back
Mixing cement with sand, aggregate and water
Card 3
Front
What compound is mainly found in Limestone?
Back
Card 4
Front
What does calcium carbonate decompose to?
Back
Card 5
Front
What is the the type of reaction called when limestone is broken down?
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