Basics of Chemistry

Question 1

Which of the following classifications would identify emulsions that are generally used in the cosmetology industry?

Accepted Answer

oil-in-water emulsion

Question 2

Which of the following statements describes how human hair is formed?

Accepted Answer

bonding of protein chains to other protein chains

Question 3

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

Accepted Answer

acidic solution

Question 4

Alkalis tend to taste:

Accepted Answer

bitter

Question 5

Mixtures of two or more kinds of molecules, having a tendency to separate when left standing, are known as:

Accepted Answer

suspensions

Question 6

Which of the following characteristics identifies a pH-balanced shampoo?

Accepted Answer

able to return the hair to 4.5 to 5.5 on the pH scale

Question 7

When a solution has an equal number of hydrogen and hydroxide ions, the solution is considered:

Accepted Answer

neutral

Question 8

Neutrons have which type of electrical charge?

Accepted Answer

none

Question 9

Matter that is not alive, has never been alive and does not contain carbon falls within the study of:

Accepted Answer

inorganic chemistry

Question 10

Protons have which type of electrical charge?

Accepted Answer

positive

Question 11

What is the side bond that is of the greatest concern to the salon professional?

Accepted Answer

disulfide bond

Question 12

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

Accepted Answer

peptide bonds

Question 13

All matter that is now living or was alive at one time, with carbon present, falls within the scientific division of:

Accepted Answer

organic chemistry

Question 14

In what pH range is skin and hair?

Accepted Answer

4.5 to 5.5

Question 15

Rinses, which affect mostly the surface of the hair:

Accepted Answer

can be detrimental if allowed to build up on the hair

Question 16

pH balanced refers to a product that ranges from a pH of:

Accepted Answer

4.5 to 5.5

Question 17

The ability of hair to absorb moisture, liquids or chemicals refers to the hair's:

Accepted Answer

porosity

Question 18

The instructions on a product state to shake well before use, which indicates the product is a(n):

Accepted Answer

suspension

Question 19

Following element is the most abundant in the earth's crust & the 2nd most abundant element in the earth's atmosphere:

Accepted Answer

oxygen

Question 20

A solution that has more positive hydrogen ions than negative hydroxide ions is:

Accepted Answer

acidic

Question 21

Water molecules have two hydrogen atoms and one:

Accepted Answer

oxygen atom

Question 22

Acids tend to taste:

Accepted Answer

sour

Question 23

What is created when amino acids join together in chains?

Accepted Answer

proteins

Question 24

Matter with definite weight and volume but no definite shape is called:

Accepted Answer

a liquid

Question 25

All of the following statements regarding pH are true EXCEPT:

Accepted Answer

values below 7 indicate more alkalinity

Question 26

When amino acids combine to form the protein of the hair:

Accepted Answer

they take on a spiraling configuration

Question 27

Matter with definite weight but indefinite volume and shape is called:

Accepted Answer

a gas

Question 28

The most accurate method of measuring pH is with:

Accepted Answer

a pH meter

Question 29

An example of an oil-in-water emulsion is:

Accepted Answer

perm solution

Question 30

What is created when amino acids join together in chains?

Accepted Answer

proteins

Question 31

Mixtures of organic substances and a medicinal agent are:

Accepted Answer

ointments

Question 32

Atoms that are different form a(n):

Accepted Answer

compound

Question 33

A shampoo type generally recommended for clients who are bedridden and cannot wet their hair is known as:

Accepted Answer

non-aerosol powder dry shampoo

Question 34

The primary ingredient of most shampoos is:

Accepted Answer

deionized water

Question 35

What color does red litmus paper turn when placed in an alkali?

Accepted Answer

blue

Question 36

When 2 hydrogen atoms combine with one oxygen atom the result is a water molecule which is a(n):

Accepted Answer

compound

Question 37

Why is chlorine added to the water purification process?

Accepted Answer

to kill bacteria

Question 38

Which of the following conditions is an example of chemical change?

Accepted Answer

oxygen and hydrogen combining to form water

Question 39

Which bond is the backbone of all protein molecules?

Accepted Answer

peptide

Question 40

Substances of acidic or alkaline nature dissolve in water and/or contain:

Accepted Answer

water

Basics of Chemistry

Questions 40

Basics of Chemistry

Questions 40