102.11-102.12 Chemistry Test WK 2

Question 1

The term used to identify anything that occupies space and has weight is called what?

Answer 1

Matter

Question 2

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

Answer 2

Organic chemistry

Question 3

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

Answer 3

Iron changing to rust

Question 4

Water freezing and becoming ice is an example of what type of change?

Answer 4

Physical

Question 5

Basic substances that cannot be broken down into simpler substances are called what?

Answer 5

Elements

Question 6

Two or more of the same atoms joined together by a chemical bond is a what?

Answer 6

Molecule

Question 7

When two hydrogen atoms combine with pine oxygen atom, the result is a water molecule, which is what?

Answer 7

Compound

Question 8

Atoms that are the same form a what?

Answer 8

Element

Question 9

Carbon, oxygen, hydrogen and nitrogen form the basis of what?

Answer 9

Amino Acids

Question 10

What is created when amino acids join together in chains?

Answer 10

Proteins

Question 11

What is 97% of hair consist of?

Answer 11

Keratin

Question 12

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

Answer 12

Linking together of protein groups

Question 13

The bonds found within hair that help organize protein chains in order to build hair are called what?

Answer 13

Side Bonds

Question 14

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

Answer 14

Hydrogen Bonds

Question 15

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

Answer 15

Disulfide Bonds

Question 16

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

Answer 16

Water

Question 17

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

Answer 17

Acidic

Question 18

What is not true about pH?

Answer 18

Values below 7 indicate more alkalinity

Question 19

What is distilled water with d ph of considered?

Answer 19

Neutral

Question 20

A ph of 5 is now many more times acidic than a ph of 10

Answer 20

10

Question 21

In what ph range is skin and hair?

Answer 21

4.5 t0 5.5

Question 22

What cosmetic classification represents a mixture of two or more kinds of molecules evenly dispersed?

Answer 22

Solution

Question 23

What is a substance that is able to dissolve another substance?

Answer 23

solvent

Question 24

The instructions On a product State to shake well before use, which indicates the product is a what?

Answer 24

Suspension

Question 25

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

Answer 25

Emulsion

Question 26

An example of an oil-in-water emulsion is what?

Answer 26

Perm solution

Question 27

What are mixtures of organic substances and a medicinal agent?

Answer 27

Ointments

Question 28

Mixtures of fats and oils converted to fatty acids by heat and then purified, fall under which of the following cosmetic classifications?

Answer 28

Soaps

Question 29

What cosmetic classification requires sifting until free-of-coarse gritty particles?

Answer 29

Powder

Question 30

In the process of making a cup of instant hot cocoa, what would the dry cocoa represent?

Answer 30

Solute

Question 31

Cleaning the hair and scalp and removing all foreign matter without adversely affecting either the scalp or hair is called what?

Answer 31

Shampooing

Question 32

What is not a true statement about surfactants?

Answer 32

Prevents shampoo from lathering