what is true of liquid?

it is matter with fixed volume but no definite shape

uniform mixture of two or more mutually miscible substances

atom or molecule that carries electrical changes

what is true of each of the approximately 90 naturally occurring

each has its own distinctive physical and chemical properties

what causes oxidation?

addition of oxygen or the loss of hydrogen

what is true of elements?

elements are the simplest form of matter

what is united with the aid of an emulsifier to create an emulsion?

two or more immiscible substances

what are suspensions?

unstable mixtures of two or more immiscible substances

what is true of water?

it is the most abundant of all substances on earth

loss of oxygen or the addition of hydrogen

gaseous mixture that makes up the earth's atmosphere

what is true of oxygen?

it is the most abundant element on earth

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Esto Chapter 6- Basics of Chemisry

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Questions 39

Answers

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

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