Chapter 20

What are the four chemical reactions that take place during permanent waving?

• Oxidation, reduction, neutralization, and polymerization

• Hydrolysis, condensation, combustion, and fermentation

• Sublimation, deposition, freezing, and melting

• Photosynthesis, respiration, digestion, and excretion

What is the difference between an alkaline wave and a true acid wave?

• Alkaline waves require heat, while true acid waves do not

• Alkaline waves are stronger and faster than true acid waves

• True acid waves are used for color-treated hair, while alkaline waves are not

• True acid waves are more damaging than alkaline waves

What is the purpose of neutralization in permanent waving?

• To soften the hair

• To harden the hair

• To stop the waving process and rebuild the hair structure

• To add shine to the hair

What is an important aspect of demonstrating safe and effective perm techniques?

• Using excessive heat

• Skipping the neutralization step

• Following manufacturer's instructions

• Applying perm solution to dry hair

What is the primary function of thio relaxers in hair treatment?

• To add volume to the hair

• To straighten the hair

• To color the hair

• To curl the hair

How do hydroxide relaxers affect the hair?

• They make the hair curly

• They straighten the hair

• They add shine to the hair

• They thicken the hair

What is an important aspect of using hydroxide relaxers?

• Demonstrating safe and effective techniques

• Ensuring the hair is dry

• Applying heat

• Using a comb

What does curl re-forming do to the hair?

• It colors the hair

• It restructures the hair

• It cuts the hair

• It adds extensions

Which of the following is a process used to change the natural curl pattern of hair?

• Permanent waving

• Hair coloring

• Hair cutting

• Blow drying

What is the term for a chemical process that straightens curly hair?

• Relaxing

• Curling

• Braiding

• Highlighting