The reaction between sulfuric acid (H2SO4) and magnesium (Mg) is a single displacement reaction.
The balanced chemical equation for the reaction is as follows:
H2SO4 + Mg -> MgSO4 + H2
In this reaction, magnesium displaces the hydrogen from sulfuric acid to form magnesium sulfate and hydrogen gas.
To balance the equation, you need to ensure that there are equal numbers of each element on both sides of the equation. In this case, there is one magnesium atom on each side, one sulfur atom on each side, and four hydrogen atoms on each side, so the equation is already balanced.