When an aqueous solution of sodium hydroxide (NaOH) is mixed with an aqueous solution of sulfuric acid (H₂SO₄), what happens to the pH of the resulting mixture, assuming complete neutralization?
Correct: D
Sodium hydroxide (NaOH) is a strong base, and sulfuric acid (H₂SO₄) is a strong acid. When a strong acid and a strong base react, they undergo a neutralization reaction, forming a salt and water. If the amounts of acid and base are stoichiometric (i.e., they completely neutralize each other), the resulting solution will be neutral, and its pH will be approximately 7.