Thermal decomposition of Limestone.

greenchloe1998
Mind Map by greenchloe1998, updated more than 1 year ago
greenchloe1998
Created by greenchloe1998 about 5 years ago
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GCSE edexcel science Mind Map on Thermal decomposition of Limestone., created by greenchloe1998 on 01/20/2015.

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Thermal decomposition of Limestone.
1 limestone is mainly calcium carbonate.
1.1 heating it produces calcium oxide and carbon dioxide.
1.1.1 bubbling carbon dioxide through water makes it turn cloudy!
2 some carbonates undergo thermal decomposition more easily than others depending on stability.
3 sometimes there's a colour change in the substance
3.1 copper carbonate is green
3.1.1 copper oxide is black
4 add water to calcium oxide to get calcium hydroxide.
4.1 calcium hydroxide is used to neutralise acidic soil.
4.2 dissolves in water to create limewater.
5 this image shows 1) calcium carbonate thermally decomposing into carbon dioxide and calcium oxide . 2) calcium oxide being added to water to produce calcium hydroxide (limewater). 3) Calcium hydroxide reacts with carbon dioxide to form calcium oxide and water.
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