Magnesium Reacting with Nitric Acid

Mg + 2HNO3 → Mg(NO3)2 + H2

概述

Magnesium reacts with dilute nitric acid to produce magnesium nitrate and hydrogen gas. With concentrated HNO3, nitrogen oxides form instead of hydrogen because nitric acid is an oxidizing acid. This reaction demonstrates the dual nature of nitric acid as both an acid and oxidizer.

参与者

角色 物质 系数 状态
反应物 Magnesium Mg 1 (s)
反应物 Nitric Acid HNO₃ 2 (aq)
产物 Hydrogen H 1 (g)

日常示例

This reaction demonstrates why different acid concentrations can produce different products, an important concept in chemistry education.

工业重要性

硝酸镁用作脱水剂、烟火技术中的氧化剂和提供镁与氮双元素的农业肥料组分，也用于有机合成中的催化剂。

属性

类型
Single Replacement
可逆
否
能量
放热
ΔH
-454.0 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 Nitric Acid?
The balanced equation is: Mg + 2HNO₃ → Mg(NO₃)₂ + H₂.
What type of reaction is Magnesium Reacting with Nitric Acid?
Magnesium Reacting with Nitric Acid is a single replacement reaction.
Is Magnesium Reacting with Nitric Acid exothermic or endothermic?
Magnesium Reacting with Nitric Acid is exothermic (releases energy). The enthalpy change (ΔH) is -454.0 kJ/mol.