Displacement of Hydrogen from Acid by Magnesium

Mg + 2HCl → MgCl2 + H2

개요

Magnesium is oxidized from Mg⁰ to Mg²⁺ while hydrogen ions are reduced from H⁺ to H₂. This vigorous redox reaction produces rapid hydrogen evolution and significant heat. The reaction rate can be studied by varying acid concentration, temperature, or magnesium surface area.

참여 물질

역할 물질 계수 상태
반응물 Magnesium Mg 1 (s)
반응물 Hydrochloric Acid HCl 2 (aq)
생성물 Hydrogen H 1 (g)

일상 속 예시

This reaction is commonly used in school chemistry labs to study reaction kinetics by measuring the rate of hydrogen gas evolution.

산업적 중요성

마그네슘 기반 수소 발생 시스템 연구에 활용됩니다. 마그네슘 합금의 산 세척 공정 이해에 중요하며, 금속 활성도 계열 교육의 핵심 사례입니다.

성질

유형
Redox
가역 반응
아니오
에너지
발열
ΔH
-462.0 kJ/mol

관련 반응

Bleaching with Sodium Hypochlorite Copper Reduction of Silver Ion Aqua Regia Dissolving Gold Cerium(IV) Reduction by Iron(II) Chlorine Oxidation of Bromide Copper Oxidation by Nitric Acid Hypochlorite Oxidation of Hydrogen Peroxide Hydrogen Peroxide as Oxidizing Agent (Acidic) Zinc Reduction of Silver Ion Iron(II) to Iron(III) Oxidation by Oxygen

Frequently Asked Questions

What is the equation for Displacement of Hydrogen from Acid by Magnesium?
The balanced equation is: Mg + 2HCl → MgCl₂ + H₂.
What type of reaction is Displacement of Hydrogen from Acid by Magnesium?
Displacement of Hydrogen from Acid by Magnesium is a redox reaction.
Is Displacement of Hydrogen from Acid by Magnesium exothermic or endothermic?
Displacement of Hydrogen from Acid by Magnesium is exothermic (releases energy). The enthalpy change (ΔH) is -462.0 kJ/mol.