The Reaction:
Magnesium (Mg) is a reactive metal, and dilute sulfuric acid (H₂SO₄) is an acid. When they react, a single displacement reaction occurs:
* Mg(s) + H₂SO₄(aq) → MgSO₄(aq) + H₂(g)
Explanation:
* Magnesium (Mg): Magnesium is a more reactive metal than hydrogen. This means it can displace hydrogen from its compound (sulfuric acid).
* Sulfuric Acid (H₂SO₄): Sulfuric acid provides hydrogen ions (H+) in solution.
* Magnesium Sulfate (MgSO₄): Magnesium reacts with the sulfate ions (SO₄²⁻) to form magnesium sulfate, which dissolves in water.
* Hydrogen Gas (H₂): The displaced hydrogen atoms combine to form hydrogen gas, which is released as bubbles.
Evidence of the Reaction:
You'll observe the following:
* Bubbles: Hydrogen gas will be released, causing bubbling in the solution.
* Heat: The reaction is exothermic, meaning it releases heat and the solution will warm up.
* Dissolving Magnesium: The magnesium metal will gradually disappear as it reacts.
Important Note: The reaction between magnesium and dilute sulfuric acid is a vigorous reaction, producing a noticeable amount of hydrogen gas.
