stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chap 7- Chemistry State Board Flashcards | StudBud
Explore
/
Chap 7- Chemistry State Board
Chap 7- Chemistry State Board
40 terms
·
StudBud Administration
·
61 plays
Imported from external platform
Flashcards
40 cards
F
Practice quiz
P
Host live
L
Questions
40
Answers
1
what is true water?
water comprises a very small portion of the human body
it is a relatively scarce substance
it is the most abundant of all substances on Earth
the human body is made entirely of water
2
what businesses primarily use oil-in-water emulsions?
auto repair shops
fast-food restaurants
salons and spas
bakeries
3
What is the natural pH of the skin?
5.5
7.0
7.5
3.5
4
What is the term that refers to matter in its three physical forms (liquid, solid, gas)?
states of matter
chemical properties
physical properties
appearances of matter
5
What is light a form of?
liquid
energy
gas
matter
6
what term refers to substances with a pH below 7.0?
acids
bases
alkalis
solutes
7
What term means “oil-loving”?
Lipophilic
Lipophobic
Lipocentric
Lipoactive
8
what is an atom with a positive electrical charge?
cation
anion
neutron
molecule
9
What is any substance that is dissolved by a solvent to form a solution?
emulsion
suspension
matter
solute
10
How much of the air is made up of nitrogen?
4/5
1/4
3/8
2/3
11
what are suspensions?
stable mixtures of 2 or more immiscible substances
chemical compounds made from a reduction and a solution
chemical compounds made from a reduction and a suspension
unstable mixtures of 2 or more immiscible substances
12
what causes oxidation?
addition of both oxygen and hydrogen
loss of both oxygen and hydrogen
addition of oxygen or the loss of hydrogen
addition of hydrogen or the loss of oxygen
13
What term means “water-loving”?
Hydrophilic
Hydrocentric
Hydro active
Hydrophobic
14
what is NOT true of atoms?
all matter is composed of atoms
they are small particles of elements
all atoms are identical
atoms consist of smaller particles
15
What is a difference between water-in-oil (w/o) emulsions and oil-in-water (o/w) emulsions?
W/O emulsions are easily rinsed away with water
O/W emulsions are not easily rinsed away with water
O/W emulsions are greasier
W/O emulsions are greasier
16
? is the science that deals with the composition, structure, & properties of matter & how matter changes under dif cond?
Physiology
Ergonomics
Chemistry
Biology
17
what term refers to molecules that contain two or more atoms of the same element?
atomic molecules
elemental molecules
chemical molecules
radiological molecules
18
what does the term miscible mean?
incapable of being ionized
incapable of being mixed
capable of being mixed
capable of being ionized
19
What are substances with a pH above 7.0?
alkalis
reductions
solutions
acids
20
what is an ion with a negative charge?
molecule
neutron
anion
cation
21
what element is absent from the compounds studied inorganic chemistry?
nitrogen
helium
oxygen
carbon
22
what element is found in all living things, whether they are plants or animals?
carbon
radon
helium
zinc
23
what is true of oxygen?
it is the most abundant element on Earth
it is the least abundant element on Earth
it should not be ingested because it is poisonous to humans
contrary to popular belief, there is no oxygen in the air
24
what do antioxidants prevent by neutralizing free radicals?
radicalization
oxidation
ionization
oxygenation
25
what is air?
common name for the chemical that makes the sky appear blue
gaseous mixture that makes up the earth's atmosphere
shell of radiation surrounding earth
water vapor that forms clouds
26
what is true liquid?
it is matter with fixed volume but no definite shape
it is matter with no fixed volume but definite shape
it is matter with no fixed volume and no definite shape
it is matter with fixed volume and definite shape
27
what is united with the aid of an emulsifier to create an emulsion?
two or more immiscible substances
two or more miscible substances
a surfactant and a liquid
a reduction and a solution
28
what has physical properties that we can see, small, taste, and touch?
electricity
energy
matter
radiation
29
what is true of elements?
in chemistry, the main elements are sunshine, clouds, rain, and snow
there are only five basic elements in the universe
elements are the simplest form of matter
elements are the most complex form of matter
30
what is a solution?
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
unstable mixture of the largest particles
31
What are most skin care products?
Suspensions of oil and water
Reductions of oil and water
Solutions of oil and water
Emulsions of oil and water
32
what is true moisturizer?
it is an oil-in-water reduction
it is a water-in-oil reduction
it is a water-in-oil emulsion
it is an oil-in-water emulsion
33
What are the 2 branches of chemistry?
Organic and inorganic
Anagen and catagen
Alkaline and acidic
Artificial and natural
34
What is reduction?
addition of both oxygen and hydrogen
addition of oxygen or the loss of hydrogen
loss of oxygen or the addition of hydrogen
loss of both oxygen and hydrogen
35
How much of the Earth's surface, approximately, is water?
10%
100%
75%
25%
36
what is true of each of the approximately 90 naturally occurring elements?
each has its own distinctive physical and chemical properties
all share the same physical and chemical properties
through chemical properties vary, all have the same physical properties
through physical properties vary, all have the same chemical properties
37
what type of neutralization reaction forms water and salt?
reduction-compound
atom-alkali
solution-compound
acid-alkali
38
what is the study of substances that contain carbon?
carbon chemistry
organic dating
carbon dating
organic chemistry
39
what type of substance has a pH level of 7.0
acidic
alkaline
toxic
neutral
40
what is an ion?
dust particle left over after the ionization process
atom or molecule that carries an electrical charge
spark discharged during the ionization
atom or molecule without an electrical charge
