Chapter 5 Chemistry

Question 1

Which of the following conditions indicates chemical change?

Accepted Answer

oxygen and hydrogen combining to form water

Question 2

If a label lists the ingredients: water, alcohol, and panthenol, which have the largest amount?

Accepted Answer

water

Question 3

Amino acids that create proteins are linked together end to end by:

Accepted Answer

peptide bonds

Question 4

Which of the following shampoo types is designed to treat scalp and hair problems or disorders?

Accepted Answer

medicated shampoo

Question 5

Mixtures of two or more kinds of molecules, that separate when left standing are known as:

Accepted Answer

suspensions

Question 6

What is the name given to purifying water by passing it through a porous substance?

Accepted Answer

filtration

Question 7

Two or more of the same atoms joined together by a chemical bond is a(n):

Accepted Answer

molecule

Question 8

In a water-in-oil emulsion, which substance is there more of?

Accepted Answer

oil

Question 9

All matter that is living or once was living contains carbon and deals with:

Accepted Answer

organic chemistry

Question 10

A pH of 5 is how many more times acidic than a pH of 7?

Accepted Answer

100

Question 11

The oil-loving part of a surface active agent is called:

Accepted Answer

lipophilic

Question 12

The chemical symbol for carbon is:

Accepted Answer

C

Question 13

Which shampoo would most likely be used to remove product build-up?

Accepted Answer

clarifying shampoo

Question 14

Using a conditioner would help achieve all of the following results EXCEPT:

Accepted Answer

increase new hair growth

Question 15

Which of the following side bonds is an ionic bond that is broken by a change in pH?

Accepted Answer

salt bond

Question 16

Cosmetics in the United States are regulated under which of the following agencies?

Accepted Answer

Food and Drug Administration

Question 17

Redox refers to a substance gaining an electron and releasing:

Accepted Answer

oxygen

Question 18

Which of the following characteristics do NOT describe a disulfide bond?

Accepted Answer

can be weakened by water

Question 19

Which of the following statements about surfactants is NOT true?

Accepted Answer

prevents shampoo from lathering

Question 20

Who is the party responsible for distribution of Material Safety Data Sheets?

Accepted Answer

manufacturer

Question 21

Electrons have which type of electrical charge?

Accepted Answer

negative

Question 22

On the pH scale, numbers less than 7 indicate a(n):

Accepted Answer

acidic solution

Question 23

A substance that is able to dissolve another substance is called a(n):

Accepted Answer

solvent

Question 24

Which of the following items is NOT an example of a physical change?

Accepted Answer

rusting of a nail

Question 25

Which bonds found in the hair can be easily broken by heat or water?

Accepted Answer

hydrogen bonds

Question 26

When two hydrogen atoms combine with one oxygen atom, the result is water, which is called a(n)

Accepted Answer

compound

Question 27

Distilled water with a pH of 7 is considered:

Accepted Answer

neutral

Question 28

What is formed when two or more nonmixable substances are united with the help of a binder?

Accepted Answer

emulsion

Question 29

Carbon, nitrogen, oxygen and hydrogen form the basis of:

Accepted Answer

amino acids

Question 30

Which of the following shampoo types is formulated to have the same pH as the hair and skin?

Accepted Answer

acid-balanced shampoo

Chapter 5 Chemistry

Questions 30

Chapter 5 Chemistry

Questions 30