Magnesium Reacting with Nitric Acid
Mg + 2HNO3 → Mg(NO3)2 + H2
Aperçu
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.
Participants
| Rôle | Substance | Coefficient | État |
|---|---|---|---|
| Réactif | Magnesium Mg | 1 | (s) |
| Réactif | Nitric Acid HNO₃ | 2 | (aq) |
| Produit | Hydrogen H | 1 | (g) |
Exemple du quotidien
This reaction demonstrates why different acid concentrations can produce different products, an important concept in chemistry education.
Importance industrielle
Magnesium nitrate is used as a dehydrating agent, in pyrotechnics, and as a fertilizer component providing both magnesium and nitrogen.
Propriétés
- Type
- Single Replacement
- Réversible
- Non
- Énergie
- Exothermique
- ΔH
- -454,0 kJ/mol
Réactions associées
Magnesium Reacting with Steam
Lithium Reacting with Water
Aluminum Reducing Chromium Oxide (Aluminothermic)
Iron Reacting with Hydrochloric Acid
Iron Displacing Copper from Copper Sulfate
Magnesium Reacting with Hydrochloric Acid
Copper Displacing Silver from Silver Nitrate
Iron Reacting with Copper(II) Chloride
Magnesium Reacting with Sulfuric Acid
Chlorine Displacing Iodine from Potassium Iodide
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.