Ch 20 Chemical Texturizing

Question 1

Chemical texture procedures involve changing the structure of the hair:

Answer 1

both physically and chemically

Question 2

The natural pH of hair is between:

Answer 2

4.5 and 5.5

Question 3

Compounds consisting of carbon, oxygen, hydrogen, nitrogen, and sulfur are:

Answer 3

amino acids

Question 4

Peptide bonds are also known as:

Answer 4

end bonds

Question 5

The strongest of the three side bonds are:

Answer 5

disulfide bonds

Question 6

Salt bonds are broken by:

Answer 6

changes in pH

Question 7

The measurement of the thickness or thinness of a liquid that affects how the fluid flows is:

Answer 7

viscosity

Question 8

The neutralizer used with thio relaxers is usually:

Answer 8

hydrogen peroxide

Question 9

Which straightening method combines use of a thio relaxer with flat ironing?

Answer 9

Japanese thermal straightening

Question 10

Hydroxide relaxers remove one atom of sulfur from a disulfide bond, converting it into a _____ bond.

Answer 10

lanthionine

Question 11

Guanidine hydroxide relaxers are advertised and sold as _____ relaxers.

Answer 11

no-lye

Question 12

What is used to protect the skin and scalp during hair relaxing?

Answer 12

base cream

Question 13

how far from the scalp do you start a virgin chemical relaxer?

Answer 13

1/4-inch to 1/2-inch

Question 14

A _____ is a thio-based chemical service that reformats curly and wavy hair into looser and larger curls and waves.

Answer 14

soft curl permanent

Question 15

A _____ is a conditioner with an acidic pH that conditions hair and restores the natural pH prior to shampooing.

Answer 15

normalizing lotion

Question 16

Generally, keratin straightening treatments eliminate up to what percent of frizz and curl?

Answer 16

95 percent

Question 17

The side bonds of the _____ must be broken in order to change the natural wave pattern of the hair.

Answer 17

cortex

Question 18

Which type of hair requires a highly alkaline chemical solution?

Answer 18

coarse, resistant hair

Question 19

​Polypeptide chains are long chains of amino acids joined together by _____ bonds.

Answer 19

peptide

Question 20

​A _____ bond is NOT a type of side bond.

Answer 20

peptide

Question 21

​Hydrogen bonds can be broken by:

Answer 21

water or heat

Question 22

Disulfide bonds account for about _____ of the hair’s overall strength.​

Answer 22

one-third

Question 23

Which type of metal is NOT commonly used to form ionic compounds in metal hydroxide relaxers?

Answer 23

magnesium (Mg)

Question 24

When the silicone polymers and formalin in keratin-based straightening treatments are heated to high temperatures, they release:

Answer 24

formaldehyde gas

Question 25

​Thio relaxers use the same ATG that is used in permanent waving, but at a:

Answer 25

higher concentration and a higher pH

Question 26

​Hydroxide relaxers are:

Answer 26

very strong alkalis

Question 27

​Which type of relaxers are commonly called lye relaxers?

Answer 27

sodium hydroxide

Question 28

The sulfites used as low-pH hair relaxers are compatible with:

Answer 28

thio relaxers

Question 29

​It is recommended that you apply base cream when using:

Answer 29

base relaxers

Question 30

​A super-strength relaxer is recommended if the client has _____ hair.

Answer 30

extremely curly

Question 31

​When performing a chemical hair relaxing service, it is appropriate to:

Answer 31

​conduct periodic strand tests during the service