Formation of Calcium Hydroxide
CaO + H2O → Ca(OH)2
Tổng quan
Calcium oxide (quicklime) reacts exothermically with water to form calcium hydroxide (slaked lime). This reaction generates considerable heat and can cause water to boil. It is one of the oldest known chemical reactions, used in construction for millennia.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Calcium Oxide CaO | 1 | (s) |
| Chất phản ứng | Water H₂O | 1 | (l) |
| Sản phẩm | Calcium Hydroxide Ca(OH)₂ | 1 | (s) |
Ví dụ thực tế
Self-heating food cans and chemical heating packs sometimes use this reaction between quicklime and water to generate heat.
Tầm quan trọng công nghiệp
Calcium hydroxide is used in water treatment, paper manufacturing, sugar refining, and as a component in mortar and plaster. Essential for pH adjustment in many industrial processes.
Tính chất
- Loại
- Synthesis
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -65,2 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 Hydroxide?
The balanced equation is: CaO + H₂O → Ca(OH)₂.
What type of reaction is Formation of Calcium Hydroxide?
Formation of Calcium Hydroxide is a synthesis reaction.
Is Formation of Calcium Hydroxide exothermic or endothermic?
Formation of Calcium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -65.2 kJ/mol.