Chapter 20: chemical texture

What chemical side bonds are formed when two sulfur-type chains are joined together?

• Disulfide bonds
• Keratin bonds
• Peptide bonds
• Amino acids

In a _____, the hair is wrapped at an angle other than perpendicular to the length of the rod which causes the hair to spiral along the length of the rod.

• basic permanent wrap
• croquignole perm wrap

• spiral perm wrap
• curvature permanent wrap

What is a hydroxide relaxer that does not require the application of a protective base?

• Metal hydroxide relaxer
• No-base relaxer
• Cream relaxer
• Base cream relaxer

What type of perm is activated by heat created chemically within the product?

• endothermic

• alkaline

• exothermic

• sodium hydroxide

During a relaxer strand test, hair that is pressed to the scalp and continues to curl is _____.

• sufficiently relaxed
• insufficiently relaxed
• normalized
• overprocessed

Where should you start the application of the chemical relaxer, often considered the most resistant area?

• Back of the head
• Side area
• Front hairline
• Scalp area

Alkaline waves, also known as _____, were developed in 1941.

• cold waves
• weak waves
• strong waves
• hot waves

For _____ , the hair is wrapped at an angle of 90 degrees or perpendicular to its base section allowing it to minimize stress and tension on the hair.

• Off-base placement
• Base placement
• Half off-base placement
• On-base placement

What is the main active ingredient in true acid and acid-balanced waving lotions?

• Sodium hydrochloride
• Glyceryl monothioglycolate
• Ammonium thioglycolic
• Sodium hydroxide

Hair that is treated with hydroxide relaxers must not be treated with _____.

• conditioning solutions
• color shampoos
• normalizing solutions
• thio relaxers