Ontario Hairstyling Practice Exam 2025 - Free Hairstylist Exam Questions and Study Guide

Question: 1 / 400

A pH below seven is considered to be which of the following?

Neutral

Basic

Acidic

A pH below seven is considered acidic because the pH scale ranges from 0 to 14, with 7 being neutral. This scale measures the concentration of hydrogen ions in a solution: when the concentration of hydrogen ions is higher, the solution becomes more acidic, hence lowering the pH below seven. Acidic solutions can have various effects in hairstyling, such as helping to close the hair cuticle and enhancing shine. Understanding pH is crucial in hairstyling products, as it can affect the overall health and appearance of hair. The concept of acidity is central in chemical processes, including those involved in hair treatment and styling.

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