Sodium Carbonate and Hydrochloric Acid
Na2CO3 + 2HCl → 2NaCl + H2O + CO2
概述
Sodium carbonate reacts with hydrochloric acid to produce sodium chloride, water, and carbon dioxide gas. The effervescence from CO2 evolution is a characteristic feature. This reaction is used to test for carbonate ions and occurs in two stages through bicarbonate intermediate.
参与者
| 角色 | 物质 | 系数 | 状态 |
|---|---|---|---|
| 反应物 | Sodium Carbonate Na₂CO₃ | 1 | (s) |
| 反应物 | Hydrochloric Acid HCl | 2 | (aq) |
| 产物 | Water H₂O | 1 | (l) |
| 产物 | Carbon Dioxide CO₂ | 1 | (g) |
| 产物 | Sodium Chloride NaCl | 2 | (aq) |
日常示例
Cleaning products containing sodium carbonate fizz when they contact acidic substances like vinegar, due to this CO2-producing reaction.
工业重要性
用于索尔维制碱法、水处理软化和纸浆造纸工业，碳酸钠是重要的工业碱，全球年产量超过5000万吨。
属性
- 可逆
- 否
- 能量
- 放热
- ΔH
- -24.3 kJ/mol
相关反应
Iron(III) Chloride and Sodium Hydroxide
Calcium Chloride and Sodium Carbonate
Barium Chloride and Sodium Sulfate Precipitation
Calcium Hydroxide and Carbon Dioxide (Limewater Test)
Magnesium Hydroxide and Hydrochloric Acid (Antacid)
Lead Nitrate and Potassium Iodide (Golden Rain)
Copper(II) Sulfate and Sodium Hydroxide
Sodium Hydroxide and Iron(III) Chloride (Rust Color)
Sodium Hydroxide and Hydrochloric Acid Neutralization
Aluminum Hydroxide and Hydrochloric Acid
Frequently Asked Questions
What is the equation for Sodium Carbonate and Hydrochloric Acid?
The balanced equation is: Na₂CO₃ + 2HCl → 2NaCl + H₂O + CO₂.
What type of reaction is Sodium Carbonate and Hydrochloric Acid?
Sodium Carbonate and Hydrochloric Acid is a double replacement reaction.
Is Sodium Carbonate and Hydrochloric Acid exothermic or endothermic?
Sodium Carbonate and Hydrochloric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -24.3 kJ/mol.