Thermal decomposition of Limestone.


GCSE edexcel science Mind Map on Thermal decomposition of Limestone., created by greenchloe1998 on 01/20/2015.
Mind Map by greenchloe1998, updated more than 1 year ago
Created by greenchloe1998 about 8 years ago

Resource summary

Thermal decomposition of Limestone.
  1. limestone is mainly calcium carbonate.
    1. heating it produces calcium oxide and carbon dioxide.
      1. bubbling carbon dioxide through water makes it turn cloudy!
    2. some carbonates undergo thermal decomposition more easily than others depending on stability.
      1. sometimes there's a colour change in the substance
        1. copper carbonate is green
          1. copper oxide is black
        2. add water to calcium oxide to get calcium hydroxide.
          1. calcium hydroxide is used to neutralise acidic soil.
            1. dissolves in water to create limewater.
            2. 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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