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 Carbon Dioxide CO₂ 1 (g)
产物 Water H₂O 1 (l)
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

类型
Double Replacement
可逆
否
能量
放热
ΔH
-24.3 kJ/mol

相关反应

Iron(III) Chloride and Sodium Hydroxide Ammonia and Hydrochloric Acid (White Smoke) Calcium Carbonate and Hydrochloric Acid Calcium Chloride and Sodium Carbonate Barium Chloride and Sodium Sulfate Precipitation Calcium Hydroxide and Carbon Dioxide (Limewater Test) Sodium Hydroxide and Iron(III) Chloride (Rust Color) Sodium Hydroxide and Hydrochloric Acid Neutralization Potassium Hydroxide and Sulfuric Acid 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.