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Chap. 7: Basics of Chemistry Flashcards | StudBud
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Chap. 7: Basics of Chemistry
Chap. 7: Basics of Chemistry
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Milady Esthetics State Board Exam Review
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Questions
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Answers
1
How much of the air is made up of nitrogen?
four-fifths
one-quarter
three-eighths
two-thirds
2
What is a difference between water-in-oil (W/O) emulsions and oil-in-water (O/W) emulsions?
O/W emulsions are not easily rinsed away with water
W/O emulsions are easily rinsed away with water
W/O emulsions are greasier
O/W emulsions are greasier
3
What element is found in all living things, whether they are plants or animals?
zinc
radon
helium
carbon
4
What do antioxidants prevent by neutralizing free radicals?
ionization
oxygenation
oxidation
radicalization
5
What is the study of substances that contain carbon?
carbon dating
carbon chemistry
organic chemistry
organic dating
6
What is the term that refers to matter in its three physical forms (liquid, solid, gas)?
appearances of matter
chemical properties
physical properties
states of matter
7
What term refers to molecules that contain two or more atoms of the same element?
chemical molecules
elemental molecules
atomic molecules
radiological molecules
8
What is an ion?
atom or molecule without an electrical charge
spark discharged during the ionization process
dust particle left over after the ionization process
atom or molecule that carries an electrical charge
9
What element is absent from the compounds studied in inorganic chemistry?
helium
oxygen
nitrogen
carbon
10
What type of substance has a pH level of 7.0?
neutral
acidic
toxic
alkaline
11
What are substances with a pH above 7.0?
solutions
reductions
acids
alkalis
12
What term means "oil-loving"?
lipophilic
lipophobic
lipoactive
lipocentric
13
What has physical properties that we can see, smell, taste, and touch?
radiation
matter
energy
electricity
14
What is NOT true of atoms?
all matter is composed of atoms
they are small particles of elements
atoms consist of smaller particles
all atoms are identical
15
What is true of liquid?
it is matter with no fixed volume but definite shape
it is matter with fixed volume but no definite shape
it is matter with no fixed volume and no definite shape
it is matter with fixed volume and definite shape
16
What term means "water-loving"?
hydroactive
hydrophobic
hydrocentric
hydrophilic
17
What is true of oxygen?
it is the most abundant element on Earth
contrary to popular belief, there is no oxygen in the air
it should not be ingested because it is poisonous to humans
it is the least abundant element on Earth
18
What's the science of composition, structure, and properties of matter and how it changes?
ergonomics
physiology
chemistry
biology
19
What is true of each of the approximately 90 naturally occurring elements?
each has its own distinctive physical/chemical properties
chemical properties vary, but physical properties don't vary
all share the same physical and chemical properties
physical properties vary, but chemical properties don't vary
20
What is true of elements?
the main elements are sunshine, clouds, rain, and snow
elements are the most complex form of matter
there are only five basic elements in the universe
elements are the simplest form of matter
21
What is true of moisturizer?
it is a water-in-oil reduction
it is an oil-in-water emulsion
it is a water-in-oil emulsion
it is an oil-in-water reduction
22
How much of the Earth's surface, approximately, is water?
75 percent
10 percent
25 percent
100 percent
23
What is an ion with a negative charge?
anion
cation
molecule
neutron
24
What causes oxidation?
addition of both oxygen and hydrogen
addition of hydrogen or the loos of oxygen
loss of both oxygen and hydrogen
addition of oxygen or the loss of hydrogen
25
What is light a form of?
energy
matter
gas
liquid
26
What are most skin care products?
emulsions of oil and water
suspensions of oil and water
solutions of oil and water
reductions of oil and water
27
What is true of water?
it is the most abundant of all substances on Earth
it is a relatively scarce substance
water comprises a very small portion of the human body
the human body is made entirely of water
28
What is united with the aid of an emulsifier to create an emulsion?
a surfactant and a liquid
two or more immiscible substances
a reduction and a solution
two or more miscible substances
29
What is reduction?
addition of both oxygen and hydrogen
loss of oxygen or the addition of hydrogen
addition of oxygen or loss of hydrogen
loss of both oxygen and hydrogen
30
What business primarily use oil-in-water emulsions?
salons and spas
auto repair shops
bakeries
fast-food restaurants
31
What is an atom with a positive electrical charge?
anion
cation
neutron
molecule
32
What is air?
gaseous mixture that makes up the Earth's atmosphere
shell of radiation surrounding Earth
water vapor that forms clouds
common name for the chemical that makes the sky appear blue
33
What is any substance that is dissolved by a solvent to form a solution?
matter
suspension
emulsion
solute
34
What are the two branches of chemistry?
alkaline and acidic
organic and inorganic
anagen and catagen
artificial and natural
35
What type of neutralization reaction forms water and salt?
reduction-compound
atom-alkali
solution-compound
acid-alkali
36
What term refers to substances with a pH below 7.0?
acids
alkalis
bases
solutes
37
What is a solution?
stable mixture of an emulsion and a reduction
uniform mixture of two or more mutually miscible substances
uniform mixture of two or more mutually immiscible substance
unstable mixture of an emulsion and a reduction
38
What does the term miscible mean?
capable of being mixed
capable of being ionized
incapable of being ionized
incapable of being mixed
39
What are surfactants?
chemical compounds made from a reduction and a suspension
chemical compounds made from a reduction and a solution
stable mixtures of two or more immiscible substances
unstable mixtures of two or more immiscible substances
40
What is the natural pH of the skin?
7.0
3.5
5.5
7.5
