Fire Final Flashcards
What term refers to the simplest form of chemical matter?
Element
How are elements identified?
By letter symbols
What is it called when a chemical changes its state but not it’s composition?
Physical change
What is an example of a liquid?
Serum
What is the most abundant element found on earth?
Oxygen
What is the general composition of air by volume?
One part oxygen and four parts nitrogen
What is the most commonly used cosmetic ingredient?
Water
What is the range of the pH scale?
0-14
What does ionization create?
Two new ions with opposite electrical charges
What color does a base turn red litmus paper?
Blue
A pH of eight is _____ times more alkaline than a pH of seven?
10
What is a characteristic of suspension?
Slightly miscible
How long should a properly-stored emulsion remain stable?
Three years
What is an example of an oil-in-water emulsion?
Moisturizing lotion
Estheticians work with chemistry ever day?
T
Understanding chemistry helps you to understand how to layer products in services?
T
Inorganic substances are flammable?
F
The atoms of each element are different in structure from the atoms of all other elements?
T
Atoms can be divided into simpler substances by ordinary chemical means?
F
Most water is pure?
F
It may not be beneficial to the skin for the esthetician to cross over in product lines when providing services?
T
When a substance is oxidized, the oxidizer is always reduced?
T
Suspensions contain smaller particles than solutions do?
F
A disadvantage of oil-in-water emulsions is that they will not easily rinse away with water?
F