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 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
Formation of Sulfur Dioxide
Formation of Hydrogen Sulfide
Formation of Carbon Monoxide
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.