Magnesium Reacting with Nitric Acid

Mg + 2HNO₃ → Mg(NO₃)₂ + H₂

Tổng quan

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.

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Magnesium Mg	1	(s)
Chất phản ứng	Nitric Acid HNO₃	2	(aq)
Sản phẩm	Hydrogen H	1	(g)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Magnesium nitrate is used as a dehydrating agent, in pyrotechnics, and as a fertilizer component providing both magnesium and nitrogen.

Tính chất

Loại: Single Replacement
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt
ΔH: -454,0 kJ/mol

Phản ứng liên quan

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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.