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Milady CH. 7: BASIC OF CHEMISTRY Flashcards | StudBud
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Milady CH. 7: BASIC OF CHEMISTRY
Milady CH. 7: BASIC OF CHEMISTRY
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AESTHETICS GENERAL SCIENCE
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Questions
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Answers
1
What term means "water-loving"?
hydrophilic
hydrocentric
hydrophobic
hydroactive
2
What term refers to substances with a pH below 7.O?
bases
solutes
alkalis
acids
3
What is an ion with a negative charge?
cation
neutron
anoin
molecule
4
How much of the Earth's surface, approximately, is water?
25%
100%
75%
10%
5
What is a solution?
unstable mixture of the largest particles
uniform mixture of two or more mutually immiscible substances
uniform mixture of two or more mutually miscible substances
unstable mixture of an emulsion and a reduction
6
How much of the air is made up of nitrogen?
two-thirds
four-fifths
one-quarter
three-eighths
7
What term means "oil-loving"?
lipophilic
lipocentric
lipoactive
lipophobic
8
What is true of water?
the human body is made entirely of water
it is a relatively scarce substance
it is the most abundant of all substances on Earth
water comprises a very small portion of the human body
9
What is
NOT
true of atoms?
all atoms are identical
they are small particles of elements
atoms consist of smaller particles
all mat ter is composed of atoms
10
What is true of each of the approximately 90 naturally occurring elements?
though chemical properties vary, all have the same physical properties
though physical properties vary, all have the same chemical d. water vapor
each has its own distinctive physical and chemical properties
all share the same physical and chemical properties
11
What is an atom with a positive electrical charge?
neutron
cation
anoin
molecule
12
What is reduction?
loss of oxygen or the addition of hydrogen
addition of oxygen or the loss of hydrogen
loss of both oxygen and hydrogen
addition of both oxygen and hydrogen
13
What is true of liquid?
it is matter with no fixed volume but definite shape
it is matter with fixed volume and definite shape
it is matter with fixed volume but no definite shape
it is matter with no fixed volume and no definite shape
14
What are the two branches of chemistry?
anagen and catagen
organic and inorganic
alkaline and acidic
artificial and natural
15
What element is found in all living things, whether they are plants or animals?
acid-alkali
atom-alkali
carbon
zinc
16
What causes oxidation?
loss of both oxygen and hydrogen
addition of hydrogen or the loss of oxygen
addition of oxygen or the loss of hydrogen
addition of both oxygen and hydrogen
17
What is air?
gaseous mixture that makes up the Earth's atmosphere
water vapor that forms clouds
common name for the chemical that makes the sky appear blue
shell of radiation surrounding Earth
18
What are suspensions?
chemical compounds made from a reduction and a solution
unstable mixtures of two or more immiscible substances
chemical compounds made from a reduction and a suspension
stable mixtures of two or more immiscible substances
19
What businesses primarily use oil-in-water emulsions?
bakeries
auto repair shops
salons and spas
fast-food restaurants
20
What are substances with a pH above 7.0?
alkalis
solutions
reductions
acids
21
What element is absent from the compounds studied in inorganic chemistry?
carbon
helium
nitrogen
oxygen
22
What type of substance has a pH level of 7.0?
toxic
alkalis
acidic
neutral
23
What has physical properties that we can see, smell, taste, and touch?
radiation
energy
electricity
matter
24
What is t he study of substances t hat contain carbon?
carbon dating
organic chemistry
carbon chemistry
organic dating
25
What term refers to molecules that contain two or more atoms of the same element?
radiological molecules
atomic molecules
chemical molecules
elemental molecules
26
What does the term
miscible
mean?
incapable of being ionized
capable of being mixed
capable of being ionized
incapable of being mixed
27
What is light form?
gas
liquid
matter
energy
28
What is the natural pH of the skin?
5.5
3.5
7.5
7.0
29
What is the term that refers to matter in its three physical forms (solid, liquid, gas)?
physical properties
appearances of matter
states of matter
chemical properties
30
What is united with the aid of an emulsifier to create an emulsion?
a reduction and a solution
two or more miscible substances
a surfactant and a liquid
two or more immiscible substances
31
What is true of moisturizer?
it is an oil-in-water emulsion
it is an oil-in-water reduction
it is a water-in-oil emulsion
it is a water-in-oil reduction
32
What is any substance that is dissolved by a solvent to form a solution?
matter
suspension
emulsion
solute
33
Science that deals w/ the composition, structure, & properties of matter & how matter changes under different conditions
biology
ergonomics
physiology
chemistry
34
What is true of elements?
elements are the simplest form of matter
in chemistry, the main elements are sunshine, clouds, rain, & snow
elements are the most complex form of matter
there are only five basic elements in the universe
35
What type of neutralization reaction forms water and salt?
solution-compound
acid-alkali
atom-alkali
reduction-compound
36
What are most skin care products?
reductions of oil and water
emulsions of oil and water
suspensions of oil and water
solutions of oil and water
37
What do anti oxidant s prevent by neutralizing free radicals?
oxygenation
oxidation
ionization
radicalization
38
What is an ion?
spark discharge during the ionization process
atom or molecule that carries an electrical charge
atom or molecule without an electrical charge
dust particle left over after the ionization process
39
What is true 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
40
What is a difference between water-in-oil (W/0) emulsions and oil-in-water (O/W) emulsions?
W/0 emulsions are easily rinsed away with water
0/W emulsions are not easily rinsed away with water
W/0 emulsions are greasier
0/W emulsions are greasier
