Formation of Calcium Oxide (Quicklime)
2Ca + O2 → 2CaO
Tổng quan
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.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Oxygen O | 1 | (g) |
| Chất phản ứng | Calcium Ca | 2 | (s) |
| Sản phẩm | Calcium Oxide CaO | 2 | (s) |
Ví dụ thực tế
Quicklime is used in construction as a component of morite and cement, and in agriculture to raise soil pH.
Tầm quan trọng công nghiệp
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.
Tính chất
- Loại
- Synthesis
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -1270,2 kJ/mol
Phản ứng liên quan
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.