Question

Solutions that soften, swell, or expand the cuticle scales usually have a/an _______.

1) Acidic pH
2) Alkaline pH
3) Neutral pH
4) High temperature

Answer 1

Solutions that soften, swell, or expand the cuticle scales usually have an alkaline pH. Alkaline solutions have a pH greater than 7 on the pH scale. When the pH of a solution is alkaline, it can help break down and soften the cuticle scales of the hair, allowing for better absorption of moisturizing or conditioning ingredients.

Step-by-step explanation:

Solutions that soften, swell, or expand the cuticle scales usually have an alkaline pH. This is because alkaline solutions, which are also known as basic solutions, have a higher pH than 7, indicating a lower concentration of hydronium ions and a higher concentration of hydroxide ions. Neutral solutions have a pH equal to 7, while acidic solutions have a pH lower than 7. In a typical context, the pH values are referenced at a standard temperature of 25 °C. At this standard temperature, a pH greater than 6.31 for a solution indicates it is basic or alkaline, and thus has the property to expand the cuticle scales.