How do you get calcium from calcium oxide?

Answer 1

Calcium oxide is used in dental porcelain for two key reasons. One is because of its reaction with water and the formation of calcium hydroxide. The other is because it can react with carbon dioxide and form calcium carbonate. If the root canal becomes acidic due to bacteria reaction, calcium hydroxide is formed to buffer the acid. Calcium oxide in the root canal or dental porcelain acts as obturator and active disinfectant.

Answer 2

by removing oxygen from it

answer 2 Calcium metal is quite reactive, and like similar metals such as aluminum and magnesium, it is refined by electrolysis from a flux (~mixture/solution).

It is a silvery white metal, the lightest of the metals, but soon reacts with the moisture in the air to form a surface coat of oxide or hydroxide.

Limestone, the fossil bodies of tiny marine organisms, is the easy ore material.

Absolutely vital for our existence. Bones and teeth.

Answer 3

Calcium oxide, chemical compound, CaO, a colorless, cubic crystalline or white amorphous substance. It is also called lime, quicklime, or caustic lime, but commercial lime often contains impurities, e.g., silica, iron, alumina, and magnesia. It is prepared by heating calcium carbonate (e.g., limestone) in a special lime kiln to about 500°C to 600°C, decomposing it into the oxide and carbon dioxide. Calcium oxide is widely used in industry, e.g., in making porcelain and glass; in purifying sugar; in preparing bleaching powder, calcium carbide, and calcium cyanamide; in water softeners; and in mortars and cements. In agriculture it is used for treating acidic soils (liming). It is incandescent when heated to high temperatures; the Drummond light, or limelight, provides a brilliant white light by heating a cylinder of lime with the flame of an oxyhydrogen torch. Calcium oxide is a basic anhydride, reacting with water to form calcium hydroxide; during the reaction (slaking) much heat is given off and the solid nearly doubles its volume. It is used for.....

Plaster, mortar, glass production, steel production, water and sewage treatment, pottery, paint, etc.

Posted by Maya! :D