Chapter 20 test

The term PH is an abbreviation used for potential hydrogen

• true
• false

salt bonds can be broken by water, whereas disulfide bonds are broken by changes in PH

• True

• False

in permanent waving, the size of the rod determines the size of the curl

• true
• false

the single flat wrap uses one end paper folded in half over the hair ends like an envelope

• True
• False

on base placement minimizes the stress and tension on the hair.

• true
• false

Tags

NGSS.MS-PS2-2

the strength of any permanent wave is based on the concentration of its reducing agent:

• true
• false

Tags

NGSS.HS-PS1-5

the most common neutralizer is hydrogen peroxide

• true
• false

the curvature permanent wrap uses zigzag partings to divide base areas.

• True
• False

hair that has been treated with a hydroxide relaxer is unfit for permanent waving and will not hold a curl.

• true
• false

keratin straightening treatments work by breaking side bonds

• true
• false