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The Periodic Table
The Alkaline Earth Metal Carbonates.
What is the Thermal Decomposition of Carbonates?
earth metal carbonates
will decompose when heated
making the metal oxide and carbon dioxide gas.
Breaking a compound down into other substances by heating
is called thermal decomposition.
required for the carbonate to decompose
increases as you go down the group. Calcium carbonate
decomposes at a higher temperature than magnesium carbonate.
What is the Thermal Decomposition of Magnesium Carbonate?
magnesium oxide + carbon
MgCO3(s) MgO(s) + CO2(g)
You must know how to test for carbon dioxide gas.
See also the thermal decomposition of calcium carbonate.
Other metal carbonates not in group 2 do the same thing.
See the thermal decomposition of
copper carbonate, sodium carbonate and zinc carbonate.
Links Alkaline Earth Metals Revision Questions
gcsescience.com The Periodic Table Index Periodic Table Quiz gcsescience.com
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