Calcium Carbonate Definition, Structure, Balancing Equation, Examples , Uses and Video ( study material ).


What is Calcium Carbonate ?

CaCO3 means calcium carbonate. Calcium carbonate is a mineral commonly found in rocks but is also known as calcite and aragonite i.e. limestone.

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Calcium Carbonate Atomic Structure - Free Transparent PNG Clipart Images Download


Molar mass 100.0869 g/mol

Density  2.71 g/cm³

Melting point 825 °C

Equivalent Weight  50.045

Calicium Carbonate Structure:

File:Calcium carbonate structure.svg - Wikimedia Commons

Calcium Carbonate Balancing Equation:

Example 1

Carbon dioxide gas evloution occurs when calcium carbonate is heated. The remaining oxygen gas combines with calcium to form calcium oxide. We can also commonly refer to this as metal oxide.

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CaCO3 → CaO + CO2

Example 2

Calcium carbonate and H2O are available when calcium hydroxide reacts with carbon dioxide.

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Ca (OH)+ CO2  CaCO+ H2O

Example 3

When calcium chloride reacts with sodium carbonate we get calcium carbonate and sodium chloride during double decomposition.

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CaCl+ Na2CO3  CaCO+ 2NaCl

Calcium Carbonate Uses:

  • Calcium carbon is also used in medicine.
  • Used to make toothpaste and calcium oxide.
  • Calcium carbonate is used in agriculture to reduce soil acidity. Not only that but it also raises the pH value in the soil.
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Video :


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