Question

1. label the following ph scale with the correct numbers at the far ends and center. then add a line where the ph most closely matches the ph of hair.

Explanation:

Step1: Recall pH - scale range

The pH - scale ranges from 0 to 14. A pH of 7 is considered neutral.

Step2: Know the pH of hair

The pH of hair is around 4.5 - 5.5.

Answer:

Label the left - hand end of the pH scale as 0 (acidic), the center as 7 (neutral), and the right - hand end as 14 (basic). Draw a line between 4.5 and 5.5 to represent the pH of hair.