Duplicate of CH 7 Basics of Chemistry

Question 1

A disadvantage of oil-in-water emulsions is that they will not easily rinse away with water

Accepted Answer

FALSE

Question 2

Inorganic substances are flammable

Accepted Answer

FALSE

Question 3

What is an example of an organic substance?

Accepted Answer

plastic

Question 4

What is the general composition of air by volume?

Accepted Answer

1 part oxygen 4 parts nitrogen

Question 5

When a substance is oxidized, the oxidizer is always reduced

Accepted Answer

TRUE

Question 6

What is the most commonly used cosmetic ingredient?

Accepted Answer

water

Question 7

Atoms can be divided into simpler substances by ordinary chemical means

Accepted Answer

FALSE

Question 8

How are elements identified?

Accepted Answer

by letter symbols

Question 9

What color does a base turn red litmus paper?

Accepted Answer

blue

Question 10

How long should a properly-stored emulsion remain stable?

Accepted Answer

3 years

Question 11

The atoms of each element are different in structure from the atoms of all other elements

Accepted Answer

TRUE

Question 12

Understanding chemistry helps you to understand how to layer products in services.

Accepted Answer

TRUE

Question 13

It may not be beneficial to the skin for the esthetician to cross over in product lines

Accepted Answer

TRUE

Question 14

What is the range of the pH scale?

Accepted Answer

0 to 14

Question 15

Estheticians work with chemistry every day.

Accepted Answer

TRUE

Question 16

What is an example of an oil-in-water emulsion?

Accepted Answer

moisturizing lotion

Question 17

What is an example of a liquid?

Accepted Answer

serum

Question 18

What term refers to the simplest form of chemical matter?

Accepted Answer

element

Question 19

Most water is pure

Accepted Answer

FALSE

Question 20

Suspensions contain smaller particles than solutions do

Accepted Answer

FALSE

Question 21

A pH of 8 is _____ times more alkaline than a pH of 7

Accepted Answer

10

Question 22

What is the most abundant element found on earth?

Accepted Answer

oxygen

Question 23

What is a characteristic of suspensions?

Accepted Answer

slightly miscible

Question 24

What does ionization create?

Accepted Answer

2 new ions with opposite electrical charges

Question 25

What is it called when a chemical changes its state but not its composition?

Accepted Answer

physical change

Duplicate of CH 7 Basics of Chemistry

Questions 25

Duplicate of CH 7 Basics of Chemistry

Questions 25