Magnesium Reacting with Hydrochloric Acid

Mg + 2HCl → MgCl2 + H2

概述

Magnesium reacts vigorously with hydrochloric acid to produce magnesium chloride and hydrogen gas. The reaction is highly exothermic and proceeds rapidly with visible gas bubbles. Magnesium ribbon dissolves quickly with effervescence, and the solution becomes hot.

参与者

角色 物质 系数 状态
反应物 Magnesium Mg 1 (s)
反应物 Hydrochloric Acid HCl 2 (aq)
产物 Hydrogen H 1 (g)

日常示例

This reaction is used in chemistry labs to demonstrate the reactivity of metals with acids, producing hydrogen gas that pops when tested with a burning splint.

工业重要性

氯化镁是重要的工业原料，用于电解制备金属镁、道路防冰（MgCl₂融雪剂）和豆腐凝固剂，镁的酸溶解也是某些镁合金湿法回收工艺的基础。

属性

类型
Single Replacement
可逆
否
能量
放热
ΔH
-462.0 kJ/mol

相关反应

Aluminum Reacting with Iron(III) Oxide (Thermite) Chlorine Displacing Iodine from Potassium Iodide Magnesium Reacting with Steam Lithium Reacting with Water Aluminum Reacting with Hydrochloric Acid Aluminum Reducing Chromium Oxide (Aluminothermic) Iron Reacting with Hydrochloric Acid Iron Displacing Copper from Copper Sulfate Zinc Displacing Copper from Copper Sulfate Fluorine Displacing Chlorine from Sodium Chloride

Frequently Asked Questions

What is the equation for Magnesium Reacting with Hydrochloric Acid?
The balanced equation is: Mg + 2HCl → MgCl₂ + H₂.
What type of reaction is Magnesium Reacting with Hydrochloric Acid?
Magnesium Reacting with Hydrochloric Acid is a single replacement reaction.
Is Magnesium Reacting with Hydrochloric Acid exothermic or endothermic?
Magnesium Reacting with Hydrochloric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -462.0 kJ/mol.