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