Here's why:
* Double displacement reactions involve the exchange of ions between two reactants.
* In this case, magnesium chloride (Mg²⁺ + 2Cl⁻) reacts with sulfuric acid (2H⁺ + SO₄²⁻).
* The magnesium ions (Mg²⁺) from magnesium chloride will combine with the sulfate ions (SO₄²⁻) from sulfuric acid to form magnesium sulfate (MgSO₄).
* The hydrogen ions (H⁺) from sulfuric acid will combine with the chloride ions (Cl⁻) from magnesium chloride to form hydrochloric acid (HCl).
The balanced chemical equation for this reaction is:
MgCl₂ (aq) + H₂SO₄ (aq) → MgSO₄ (aq) + 2HCl (aq)
Key points:
* The reaction is an acid-base reaction as well, since sulfuric acid is a strong acid and magnesium chloride is a salt that can act as a base.
* This reaction is also considered a precipitation reaction if the conditions are right to form a solid precipitate (e.g., if the concentration of magnesium sulfate is high enough).
* The reaction produces hydrochloric acid, which is a strong acid.
Let me know if you'd like to know more about any of these aspects of the reaction!
