Magnesium Reacting with Nitric Acid

Mg + 2HNO3 → Mg(NO3)2 + H2

Visão geral

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.

Participantes

Papel Substância Coeficiente Estado
Reagente Magnesium Mg 1 (s)
Reagente Nitric Acid HNO₃ 2 (aq)
Produto Hydrogen H 1 (g)

Exemplo do cotidiano

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

Importância industrial

O nitrato de magnésio é utilizado como agente desidratante, em pirotecnia e como componente fertilizante fornecendo simultaneamente magnésio e azoto.

Propriedades

Tipo
Single Replacement
Reversível
Não
Energia
Exotérmico
ΔH
-454,0 kJ/mol

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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.