Question

6) Define the formation of calcium Oxide ?​

Answer 1

Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashells, that contain calcium carbonate (CaCO3; mineral calcite) in a lime kiln. This is accomplished by heating the material to above 825 °C (1,517 °F),[6] a process called calcination or lime-burning, to liberate a molecule of carbon dioxide (CO2), leaving quicklime.

Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashells, that contain calcium carbonate (CaCO3; mineral calcite) in a lime kiln. This is accomplished by heating the material to above 825 °C (1,517 °F),[6] a process called calcination or lime-burning, to liberate a molecule of carbon dioxide (CO2), leaving quicklime.CaCO3(s) → CaO(s) + CO2(g)

Calcium oxide is usually made by the thermal decomposition of materials, such as limestone or seashells, that contain calcium carbonate (CaCO3; mineral calcite) in a lime kiln. This is accomplished by heating the material to above 825 °C (1,517 °F),[6] a process called calcination or lime-burning, to liberate a molecule of carbon dioxide (CO2), leaving quicklime.CaCO3(s) → CaO(s) + CO2(g)The quicklime is not stable and, when cooled, will spontaneously react with CO2 from the air until, after enough time, it will be completely converted back to calcium carbonate unless slaked with water to set as lime plaster or lime mortar.

Answer 2

1.CLACIUM OXIDE CAN BE PRODUCED BY thermal decomposition of materials like limestone or seashells that contain calcium carbonate mineral in a like clim.

2.the process that used to prepare burnt lime known as Calcination.it is a process that start with thermally decomposing that reactants at high temperatures but ensuring that the temperature is kept well below the melting point.

3. The carbon dioxide that is formed immediately remove so that the reaction is preceded until the completion of the process in accordance with Le-chatleir's principle.

Caco3 ------> CaO +CO2

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