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CH 7 Basics of Chemistry Flashcards | StudBud
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CH 7 Basics of Chemistry
CH 7 Basics of Chemistry
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#Milady #Esthetics Chapter 7
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
The atoms of each element are different in structure from the atoms of all other elements
FALSE
TRUE
2
When a substance is oxidized, the oxidizer is always reduced
TRUE
FALSE
3
Suspensions contain smaller particles than solutions do
FALSE
TRUE
4
What is the most commonly used cosmetic ingredient?
essential oil
talc
water
mineral oil
5
How long should a properly-stored emulsion remain stable?
3 years
5 years
1 year
6 months
6
Understanding chemistry helps you to understand how to layer products in services.
FALSE
TRUE
7
What is the general composition of air by volume?
equal parts oxygen and nitrogen
1 part nitrogen 4 parts oxygen
1 part oxygen 4 parts nitrogen
3 parts oxygen 4 parts nitrogen
8
Inorganic substances are flammable
FALSE
TRUE
9
What is an example of an organic substance?
glass
pure water
plastic
iron
10
What term refers to the simplest form of chemical matter?
cell
element
molecule
atom
11
A pH of 8 is _____ times more alkaline than a pH of 7
2
100
10
50
12
Estheticians work with chemistry every day.
TRUE
FALSE
13
What is a characteristic of suspensions?
small particles
usually clear
stable mixture
slightly miscible
14
What is the most abundant element found on earth?
hydrogen
carbon
oxygen
nitrogen
15
What is an example of an oil-in-water emulsion?
cooling gel
cleansing milk
thick cream
moisturizing lotion
16
How are elements identified?
by graphic symbols
by letter symbols
by size
by color
17
A disadvantage of oil-in-water emulsions is that they will not easily rinse away with water
TRUE
FALSE
18
Atoms can be divided into simpler substances by ordinary chemical means
FALSE
TRUE
19
It may not be beneficial to the skin for the esthetician to cross over in product lines
FALSE
TRUE
20
What color does a base turn red litmus paper?
orange
green
blue
white
21
What does ionization create?
3 new ions with the same electrical charge
2 new ions with opposite electrical charges
2 new ions with the same electrical charges
2 new ions without an electrical charge
22
What is it called when a chemical changes its state but not its composition?
homeostasis
chemical change
peristalsis
physical change
23
What is the range of the pH scale?
0 to 14
1 to 14
0+B17:C18 to 10
1 to 10
24
Most water is pure
FALSE
TRUE
25
What is an example of a liquid?
ice
ozone
steam
serum
