A solution that has more positive hydrogen ions than negative hydroxide ions is:

A solution that has more positive hydrogen ions than negative hydroxide ions is:

• A. Acidic
• B. Neutral
• C. Alkaline
• D. Slightly alkaline

Answer: (A)

Acidity is determined by the balance of hydrogen ions (H+) and hydroxide ions (OH−) in a solution. When there are more H+ ions than OH−, the solution is acidic because the excess positive charge lowers the pH. A solution with H+ > OH− sits on the acidic side of the pH scale (pH below 7). If H+ and OH− are equal, it’s neutral (pH 7); if OH− dominates, it’s alkaline (pH above 7). In hair styling terms, acidic environments help keep the cuticle closed and maintain color and smoothness.

Acidity is determined by the balance of hydrogen ions (H+) and hydroxide ions (OH−) in a solution. When there are more H+ ions than OH−, the solution is acidic because the excess positive charge lowers the pH. A solution with H+ > OH− sits on the acidic side of the pH scale (pH below 7). If H+ and OH− are equal, it’s neutral (pH 7); if OH− dominates, it’s alkaline (pH above 7). In hair styling terms, acidic environments help keep the cuticle closed and maintain color and smoothness.