Chapter 20-Exam Review Chemical Texture Services

Front

The chemical texture service that loosens overly curly hair or changes tightly curly or coiled hair into loose curls or waves is:

Back

curl re-forming

Front

The layer of the hair that provides the strength and elasticity of human hair is the:

Back

cortex

Front

The natural pH of hair is between: 4.0-5.0, 4.5-5.5, 6.0-7.0, 7.0-8.0

Back

4.5-5.5

Front

In permanent waving, the size of the curl is determined by the: position of the rod, length of the hair, wrapping of the rod, size of the rod

Back

size of the rod

Front

The technique of wrapping hair at an angle of 90 degrees or perpendicular to its base section is:

Back

half -off base placement

Front

The two basic types of wrapping the hair around a perm rod are the spiral and:

Back

croquignole perm technique

Front

A reduction reaction involves either the addition of hydrogen or the removal of:

Back

oxygen

Front

Most cold waves have a pH between:

Back

9.0 and 9.6

Front

The three separate components of acid waves are permanent waving solution, activator, and:

Back

neutralizer

Front

An endothermic wave is activated by: an ammonia lotion, an outside heat source, a sulfite source, a reducing agent

Back

an outside heat source