Formation of Calcium Oxide (Quicklime)

2Ca + O2 → 2CaO

Aperçu

Calcium metal reacts with oxygen to form calcium oxide, also known as quicklime. This highly exothermic reaction produces a brilliant white light, historically used in limelight theater lighting. Calcium is a reactive alkaline earth metal that readily oxidizes.

Participants

Rôle Substance Coefficient État
Réactif Oxygen O 1 (g)
Réactif Calcium Ca 2 (s)
Produit Calcium Oxide CaO 2 (s)

Exemple du quotidien

Quicklime is used in construction as a component of morite and cement, and in agriculture to raise soil pH.

Importance industrielle

Calcium oxide is produced on a massive scale for steel manufacturing, cement production, water treatment, and as a chemical feedstock. Global production exceeds 350 million tonnes annually.

Propriétés

Type
Synthesis
Réversible
Non
Énergie
Exothermique
ΔH
-1270,2 kJ/mol

Réactions associées

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

What is the equation for Formation of Calcium Oxide (Quicklime)?
The balanced equation is: 2Ca + O₂ → 2CaO.
What type of reaction is Formation of Calcium Oxide (Quicklime)?
Formation of Calcium Oxide (Quicklime) is a synthesis reaction.
Is Formation of Calcium Oxide (Quicklime) exothermic or endothermic?
Formation of Calcium Oxide (Quicklime) is exothermic (releases energy). The enthalpy change (ΔH) is -1270.2 kJ/mol.