Displacement of Hydrogen from Acid by Magnesium

Mg + 2HCl → MgCl2 + H2

Genel Bakış

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.

Katılımcılar

Rol Madde Katsayı Hal
Reaktan Magnesium Mg 1 (s)
Reaktan Hydrochloric Acid HCl 2 (aq)
Ürün Hydrogen H 1 (g)

Günlük Örnek

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

Endüstriyel Önemi

Understanding metal-acid redox reactions is fundamental to corrosion science, electrochemistry, and metallurgical processing.

Özellikler

Tür
Redox
Geri Dönüşümlü
Hayır
Enerji
Ekzotermik
ΔH
-462,0 kJ/mol

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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.