Phys Scie II- Final Exam Review (Exam 4, Exam 1, & Exam 2)

Frage 1 von 150

1

The first minerals to crystallize are those with the

Wähle eine der folgenden:

lower melting point
higher melting point

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Frage 2 von 150

1

The last minerals to crystallize from a cooling magma have a

Wähle eine der folgenden:

low melting point and a high silica content
low melting point and a low silica content
high melting point and a low silica content
high melting point and a high silica content

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Frage 3 von 150

1

The protective shells that many sea organisms grow are not minerals because they

Wähle eine der folgenden:

become compacted.
are organic.
are made of ooze.
are not calcium carbonate.

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Frage 4 von 150

1

The silicates are the largest mineral group because silicon and oxygen are

Wähle eine der folgenden:

found in the common mineral quartz.
the two most abundant elements in Earth's crust.
the hardest elements on Earth's surface.

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Frage 5 von 150

1

Minerals are formed by the process of

Wähle eine der folgenden:

magma differentiation.
crystallization.
partial melting.
silica enrichment.

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Frage 6 von 150

1

The first minerals to crystallize from a cooling magma have a

Wähle eine der folgenden:

low melting point and a high silica content.
high melting point and a low silica content.
high melting point and a high silica content.
low melting point and a low silica content.

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Frage 7 von 150

1

Minerals are composed of

Wähle eine der folgenden:

homogenous solids.
inorganic solids.
silicon compounds.
common types of rocks.

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Frage 8 von 150

1

The melting point of silicate minerals is strongly dependent on the amount of silica it contains. The first minerals to melt are those with

Wähle eine der folgenden:

lowest melting point and lowest silica content.
highest silica content and highest melting point.
lowest melting point and highest silica content.
lowest silica content and highest melting point.

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Frage 9 von 150

1

The most common mineral in Earth's crust is , and the second most common mineral is .

Wähle eine der folgenden:

olivine, feldspar
silicate, carbonate
quartz, feldspar
feldspar, quartz

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Frage 10 von 150

1

The last minerals to crystallize from a cooling magma have the

Wähle eine der folgenden:

highest melting point and the highest percentage of silica.
lowest melting point and the lowest percentage of silica.
highest melting point and the lowest percentage of silica.
lowest melting point and the highest percentage of silica.

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Frage 11 von 150

1

Silica has a relatively

Wähle eine der folgenden:

high melting point.
low melting point.

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Frage 12 von 150

1

The Mohorovicic discontinuity occurs because of a

Wähle eine der folgenden:

density change in rocks of the same composition on both sides of the boundary.
change in temperature with depth.
change in the composition of rocks on both sides of the boundary.
shift in the density of minerals with the same composition.

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Frage 13 von 150

1

In comparison to P-waves, S-waves

Wähle eine der folgenden:

can travel through all mediums–solid granite, magma, water and/or air.
can travel only through solids—not in fluids.
compress and expand the rock as they move through it.
are fast and the first to register on a seismograph.

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Frage 14 von 150

1

The Earth's magnetic field is attributed to the

Wähle eine der folgenden:

flow of molten fluid in Earth's outer core.
flow of molten liquid in Earth's inner core.
movement of lithospheric plates in the outer mantle.
movement of lithospheric plates at Earth's surface.

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Frage 15 von 150

1

The asthenosphere is part of the

Wähle eine der folgenden:

lithosphere.
crust.
mantle.
outer core.

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Frage 16 von 150

1

The speed of a seismic wave depends on

Wähle eine der folgenden:

its frequency.
the type of material it travels through.
its amplitude.
how far it has to travel.

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Frage 17 von 150

1

Which seismic waves produce a wave shadow?

Wähle eine der folgenden:

Love waves.
S-waves.
P- and S- waves
P-waves.

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Frage 18 von 150

1

The Mohorovicic discontinuity marks the change in rock density elasticity between the

Wähle eine der folgenden:

inner and outer core.
asthenosphere and lithosphere.
core and the mantle.
mantle and the crustal surface.

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Frage 19 von 150

1

The Earth's layer with plastic-like behavior is the

Wähle eine der folgenden:

mantle.
inner core.
crust.
outer core.

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Frage 20 von 150

1

The lithosphere includes

Wähle eine der folgenden:

continental and oceanic crust and the upper part of the mantle.
continental and oceanic crust.
the crust and the upper part of the mantle.
part of the mantle and the crust.

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Frage 21 von 150

1

The thickness of Earth's crust

Wähle eine der folgenden:

varies from 10 km under the oceans to 60 km under the continents.
on average is about 10 km.
varies from 10 km under the continents to 60 km under the oceans.
on average is about 60 km.

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Frage 22 von 150

1

P-waves travel faster through the inner core than the outer core because the inner core is

Wähle eine der folgenden:

solid.
the same as the outer core.
hotter than the outer core.
rock.

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Frage 23 von 150

1

The outer core is

Wähle eine der folgenden:

liquid.
the source for volcanoes.
plastic.
rock.

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Frage 24 von 150

1

Seismic waves are classified as body waves and surface waves. An example of a body wave is a

Wähle eine der folgenden:

Rayleigh wave.
Tertiary wave (T-wave).
Love wave.
Primary wave (P-wave).

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Frage 25 von 150

1

In comparison to S-waves, P-waves

Wähle eine der folgenden:

are the second seismic wave to register on a seismograph.
can travel only through solids, not through fluids.
can travel through solid granite, magma, water and/or air.
vibrate the particles of their medium up and down and side-to-side.

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Frage 26 von 150

1

The outer core

Wähle eine der folgenden:

transmits S-waves.
flows fast enough to power Earth's magnetic field.
has a plasticlike flow.
is solid as a rock.

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Frage 27 von 150

1

Because S-waves do not travel through Earth's outer core, scientists inferred that the outer core is

Wähle eine der folgenden:

impenetrable.
molten liquid.
very dense.
solid.

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Frage 28 von 150

1

Continental crust is

Wähle eine der folgenden:

more dense than oceanic crust.
thinner than oceanic crust.
thinner and more dense than oceanic crust.
less dense than oceanic crust.

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Frage 29 von 150

1

Water able to be contained in the subsurface depends on

Wähle eine der folgenden:

permeability.
chemical composition.
porosity.
none of these

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Frage 30 von 150

1

The greater the hydraulic gradient the

Wähle eine der folgenden:

greater the porosity.
less the permeability.
faster the flow.
slower the flow.

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Frage 31 von 150

1

A rock's permeability can be described by its

Wähle eine der folgenden:

water-transmitting capability, or hydraulic conductivity.
water-holding capacity.
depth of burial.
density.

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Frage 32 von 150

1

When subsurface ground material is completely saturated with water, we call it

Wähle eine der folgenden:

the saturated zone.
the water table.
groundwater.
groundwater in the saturated zone.

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Frage 33 von 150

1

Water is vital to life on our planet. Most of Earth's water supply is in the

Wähle eine der folgenden:

ground.
oceans.
rivers, lakes, and streams.
ice caps.

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Frage 34 von 150

1

The flow of groundwater depends on

Wähle eine der folgenden:

porosity and hydraulic gradient.
permeability and gravity.
porosity only.
permeability and porosity.

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Frage 35 von 150

1

A rock with a high porosity will most likely have a

Wähle eine der folgenden:

low density.
large proportion of open pore spaces.
low permeability.
high permeability.

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Frage 36 von 150

1

The capacity a material has for transmitting fluids is known as its

Wähle eine der folgenden:

impermeability.
permeability.
porosity.
competence.

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Frage 37 von 150

1

A rock with very low porosity will most often have a

Wähle eine der folgenden:

low permeability.
large proportion of open spaces.
high permeability.
very high density.

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Frage 38 von 150

1

A sub-surface region that holds and transmits water is called a/an

Wähle eine der folgenden:

aquiclude.
hydrometer.
water table.
aquifer.

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Frage 39 von 150

1

The degree to which a soil or rock allows groundwater to flow is called

Wähle eine der folgenden:

permeability.
porosity.
aquifer.
hydraulic gradient.

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Frage 40 von 150

1

The flow of groundwater depends on

Wähle eine der folgenden:

hydraulic gradient, and hydraulic conductivity.
porosity and permeability.
permeability only.
porosity only.

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Frage 41 von 150

1

Groundwater is water

Wähle eine der folgenden:

below the water table.
above the water table.
that soaks into the ground.
beneath the ground surface.

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Frage 42 von 150

1

The driving force of our planet's hydrologic cycle comes from

Wähle eine der folgenden:

wind.
precipitation of water over the oceans.
the balance between precipitation and evaporation.
solar energy.

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Frage 43 von 150

1

A soil composed of flattened soil particles will most likely have a

Wähle eine der folgenden:

low porosity.
high permeability.
high porosity.
low hydraulic conductivity.

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Frage 44 von 150

1

The flow of groundwater is

Wähle eine der folgenden:

from where the water table is high to where it is low.
insignificant.
as fast as the water in streams.
from where the water table is low to where it is high.

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Frage 45 von 150

1

A mineral that is not a silicate is

Wähle eine der folgenden:

calcite
quartz
feldspar
mica

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Frage 46 von 150

1

Galena belongs to the class of minerals known as the

Wähle eine der folgenden:

sulfides
silicates
carbonates
sulfates

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Frage 47 von 150

1

Which of the following properties most clearly reflects the internal arrangement of atoms in a crystalline material?

Wähle eine der folgenden:

luster
density
color
cleavage

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Frage 48 von 150

1

The process of crystallization acts to

Wähle eine der folgenden:

enrich the crystallized minerals in silica
deplete the molten magma of silica
enrich the molten magma in silica
none of the above

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Frage 49 von 150

1

The last minerals to crystallize are those with the

Wähle eine der folgenden:

higher melting point
lower melting point

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Frage 50 von 150

1

A soil composed of well-rounded sand grains of uniform size will most likely have a

Wähle eine der folgenden:

low porosity
high porosity
low permeability
high permeability

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Frage 51 von 150

1

The following statement describes which subatomic particle best?

It is a nucleon.

Wähle eine der folgenden:

an electron
a proton
a neutron
proton and neutron

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Frage 52 von 150

1

How many electrons are there in the third shell of sodium, Na (atomic number 11)?

Wähle eine der folgenden:

none
one
two
three

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Frage 53 von 150

1

What is the name of the following compound?

NaF

Wähle eine der folgenden:

natural fosfate
nitrogen afleck
sodium fluoride
sodium phosphide
natrium fluoride

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Frage 54 von 150

1

Which of the following would be considered applied research?

Wähle eine der folgenden:

examining how susceptible a metal is to bending
determining how readily a metal corrodes in a wet environment
determining the lightest and strongest metal to be used for an airplane wing
determining the melting temperature of a metal
testing the strength of a piece of metal

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Frage 55 von 150

1

Which of the following statements best describes an element?

Wähle eine der folgenden:

a material that has consistent physical properties
a material with more than one type of atom
a material consisting of only one type of atom
a material that has consistent chemical properties
a material that is pure

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Frage 56 von 150

1

Which of these does not describe a metal at room temperature?

Wähle eine der folgenden:

bendable
gas
solid
liquid
shiny

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Frage 57 von 150

1

How would you describe the volume of the following object?

the amount of water in a swimming pool

Wähle eine der folgenden:

macroscopic
microscopic
submicroscopic
all of the above
none of the above

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Frage 58 von 150

1

Which of the following physical properties would you expect for krypton (Kr)?

Wähle eine der folgenden:

shiny
brittle
conducts electricity
a gas at room temperature
hard

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Frage 59 von 150

1

How many different elements are in the compound C₆H₁₂O₆.

Wähle eine der folgenden:

3
24
6
All of the elements are the same.

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Frage 60 von 150

1

Which of the following statements does not describe a proton?

Wähle eine der folgenden:

It orbits around the nucleus of an atom.
It is a nucleon.
It has a positive charge equivalent but opposite of an electron's.
It is attracted to negatively charged electrical plates.
It is much more massive than an electron.

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Frage 61 von 150

1

Which of the following is not a nonmetal?

Wähle eine der folgenden:

sulfur (atomic no. = 16)
xenon (atomic no. = 54)
titanium (atomic no. = 22)
selenium (atomic no. = 34)
helium (atomic no. = 2)

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Frage 62 von 150

1

Which of the following would be considered basic research?

Wähle eine der folgenden:

testing a safe, nontoxic mouse glue
testing the strength of a mouse cage
examining how quickly a trapdoor closes
examining why a mouse likes cheddar cheese more than swiss cheese
studying ways of catching mice safely

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Frage 63 von 150

1

What is the main difference between a conceptual model and a physical model?

Wähle eine der folgenden:

Physical models and conceptual models can be used to describe the same things.
Physical models can only be used to represent the real world.
A physical model represents the shape and form while a conceptual model describes how a system behaves.
Conceptual models can only be used to describe concepts.
A conceptual model represents the shape and form while a physical model describes how a system behaves.

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Frage 64 von 150

1

A cat strolls across your backyard. An hour later, a dog with its nose to the ground follows the trail of the cat. Explain what is going on from a molecular point of view.

Wähle eine der folgenden:

The dog is smelling molecules from the cat.
The cat is leading the dog into a trap.
The dog is smelling atoms from the cat
The dog is following the areas of increased density of the Earth.

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Frage 65 von 150

1

If you remove two protons and two neutrons from a gold atom (Au), what new element is formed (if any)?

Wähle eine der folgenden:

Au-2
Au
Re
Tl
Ir

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Frage 66 von 150

1

Oxygen atoms are used to make water molecules. Does this mean that oxygen, O2, and water, H2O, have similar properties?

Wähle eine der folgenden:

Yes, but that their properties are similar is only a coincidence.
Yes, and this explains how fish are able to breathe water.
No, compounds are uniquely different from the elements from which they're made.
No, but their similar properties are only a coincidence.

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Frage 67 von 150

1

Which of the following would be considered a chemical property?

Wähle eine der folgenden:

melting temperature
reactivity towards water
boiling temperature
conductivity
flexibility

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Frage 68 von 150

1

Which of the following statements about electrons is true?

Wähle eine der folgenden:

Electrons have a negative charge.
Electrons are particles.
Electrons in atoms can be excited by light energy.
Electrons behave like waves.
all of the above

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Frage 69 von 150

1

Should the periodic table be memorized? Why or why not?

Wähle eine der folgenden:

No. The periodic table changes every year. Memorizing it would be a waste of time.
Yes. Without memorizing the periodic table, one would not have any real understanding of how and why chemical compounds are put together.
Yes. Like the alphabet, we need to memorize the periodic table in order to easily write the language of chemistry.
No. The periodic table is a reference to be used, not memorized.

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Frage 70 von 150

1

The following image describes which type of change?

Wähle eine der folgenden:

an elemental change
a chemical change
no change
a physical change
a change in reactivity

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Frage 71 von 150

1

The mass number of an element is ________.

Wähle eine der folgenden:

the sum of the isotopes
the sum of the electrons and the neutrons
the number of protons
the sum of the protons and the neutrons
the sum of the electrons and the protons

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Frage 72 von 150

1

How many atoms are in one molecule of Na₂SO₄

Wähle eine der folgenden:

4
7
24
2
3

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Frage 73 von 150

1

Which element has the atomic number 12?

Wähle eine der folgenden:

Mg
Be
B
Na
C

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Frage 74 von 150

1

How is the term photon related to the term quantum?

Wähle eine der folgenden:

A quantum is a wave of light while a packet of quanta equals one photon.
A quantum is a particle of light while a photon is a wave of light.
A quantum of light is actually one photon.
A quantum is a particle of light exactly one photon long.
A quantum of photons is equal to the wavelength.

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Frage 75 von 150

1

What was Niels Bohr's explanation for the observation of atomic spectra?

Wähle eine der folgenden:

Nucleons could be excited by different electron energies.
Any photon could excite an electron.
Only certain photons with the correct energy could excite the quanta in the nucleus.
Electrons could only move in discrete energy steps within an atom.
Electrons could not move in an atom.

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Frage 76 von 150

1

Which of the following elements will most likely be shiny and flexible?

Wähle eine der folgenden:

iodine (I)
silicon (Si)
rhodium (Rh)
hydrogen (H)
helenium (Se)

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Frage 77 von 150

1

The nucleus of an electrically neutral iron atom contains 26 protons. How many electrons does this iron atom have?

Wähle eine der folgenden:

24
52
26
none

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Frage 78 von 150

1

Why isn't dirt listed in the periodic table?

Wähle eine der folgenden:

Elements like dirt and air are so common that there is no need to list them in the periodic table.
Dirt IS listed in the periodic table but is not easily recognized because it is listed as one of the rare earths with its old scientific name, dysprosium, symbol Dy.
The periodic table lists only elements made of one kind of material. Dirt is a mixture of elements and compounds.
None of the above is true.

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Frage 79 von 150

1

Strontium, Sr (number 38), is especially dangerous to humans because it tends to accumulate in calcium-dependent bone marrow tissues (calcium, Ca, number 20). This fact relates to the organization of the periodic table in that strontium and calcium are both

Wähle eine der folgenden:

in group 2 of the periodic table.
soluble in water
metals
made of relatively large atoms

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Frage 80 von 150

1

Which of the following elements are in the same group as silicon (Si)?

Wähle eine der folgenden:

B
P
C
As
none of the above

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Frage 81 von 150

1

What is the name of the following compound?

CO2

Wähle eine der folgenden:

carbon dioxide
calcium oxide
dicobalt
calcium dioxide
dioxocarbon

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Frage 82 von 150

1

Which of the following is said to be quantized?

Wähle eine der folgenden:

the volume of air in a balloon
the amount of water in a glass
the amount of time in an hour
the number of eggs in an egg carton
none of the above

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Frage 83 von 150

1

What is the valence shell?

Wähle eine der folgenden:

It is the shell of electrons in element V (atomic no. = 23)
It is the last partially filled orbital in an atom.
It is the shell of electrons in an atom that is the least reactive.
It is the same as the orbital configuration.
It is the outermost shell of electrons in an atom.

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Frage 84 von 150

1

Which contributes more to an atom's mass: electrons or protons? Which contributes more to an atom's size?

Wähle eine der folgenden:

Protons contribute more to an atom's mass while electrons contribute more to its size.
Protons contribute more to both the mass and size of an atom.
Electrons contribute more to both the mass and size of an atom.
Electrons contribute more to an atom's mass while protons contribute more to its size.

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Frage 85 von 150

1

Elements that are in the same ________ have a tendency to have very similar chemical properties due to periodic trends.

Wähle eine der folgenden:

compound
group
textbook
row
period

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Frage 86 von 150

1

What do the components of a conceptual model have in common?

Wähle eine der folgenden:

Each component must correlate with a corresponding component of a physical model.
All components interact with each other.
The components have nothing in common. This is what differentiates a conceptual model from a physical model.
All components are mutually independent of each other.

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Frage 87 von 150

1

Which of the following is an example of a physical change?

Wähle eine der folgenden:

charcoal being converted into ash
a candy bar being digested by a student
iron metal reacting with oxygen to form rust
water boiling and being converted into steam
water being electrolyzed and being converted in hydrogen and oxygen

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Frage 88 von 150

1

Which of these properties describes a metal?

Wähle eine der folgenden:

fragile
brittle
doesn't conduct electricity very well
conducts heat very well
transparent

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Frage 89 von 150

1

What is the name of the following compound?

CaCl2

Wähle eine der folgenden:

calcium chloride
dicalcium chloride
carbon chloride
dichlorocalcium
calc two

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Frage 90 von 150

1

Which are older, the atoms in the body of an elderly person or those in the body of a baby?

Wähle eine der folgenden:

It depends upon their diet.
An elderly person because they have been around much longer.
They are of the same age, which is appreciably older than the solar system.
A baby because this is surely a trick question.

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Frage 91 von 150

1

Which of the following statements describes an isotope?

Wähle eine der folgenden:

element with the same number of protons but a different number of electrons
element with the same number of neutrons but a different number of electrons
element with the same number of protons but a different number of neutrons
element with the same number of neutrons but a different number of protons
none of the above

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Frage 92 von 150

1

Would you use a physical model or a conceptual model to describe the following: the brain; the mind; the solar system; the beginning of the universe?

Wähle eine der folgenden:

physical; physical; physical; physical
conceptual; conceptual; conceptual; conceptual
physical; conceptual; physical; conceptual
conceptual; physical; conceptual physical

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Frage 93 von 150

1

Which of the following could NOT be represented by a conceptual model?

Wähle eine der folgenden:

the energy of a nucleus
the floor plan of a house
the behavior of schoolchildren
the weather

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Frage 94 von 150

1

Which of the following is a property of light?

Wähle eine der folgenden:

It is a particle.
Its energy comes in packets of uniform size.
It is a wave.
all of the above
none of the above

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Frage 95 von 150

1

The repeating trends that take place when examining the elements are called ________.

Wähle eine der folgenden:

the metal shift
a group conscience
periodicity (periodic trend)
the family cycle
none of the above

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Frage 96 von 150

1

Which of the following elements is an alkali metal?

Wähle eine der folgenden:

cerium (Cr)
argon (Ar)
lithium (Li)
lead (Pb)
indium (In)

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Frage 97 von 150

1

Which atom is smallest?

Wähle eine der folgenden:

Be
Sr
Ca
Mg
All are the same size.

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Frage 98 von 150

1

Which of the following elements is a transition metal?

Wähle eine der folgenden:

lead (Pb)
xenon (Xe)
silver (Ag)
lithium (Li)
chlorine (Cl)

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Frage 99 von 150

1

Which of the following describes a nonmetal?

Wähle eine der folgenden:

ductile
malleable
good conductor of heat
poor conductor of electricity
shiny

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Frage 100 von 150

1

Which of the following elements are in the same period as magnesium (Mg)?

Wähle eine der folgenden:

Ca
Cl
Sr
Mn
none of the above

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Frage 101 von 150

1

Metals are useful for the structural support of buildings because they

Wähle eine der folgenden:

do not conduct heat well
are strong but can be bent
conduct electricity
are shiny

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Frage 102 von 150

1

Which of the following bonds would be the most polar?

Wähle eine der folgenden:

C-Cl
C-Br
C-F
C-I
All are equally polar.

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Frage 103 von 150

1

Which of the following bonds would be the least polar?

Wähle eine der folgenden:

C-H
C-F
C-O
C-Cl
All are equally polar.

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Frage 104 von 150

1

The source of an atom's electronegativity is the

Wähle eine der folgenden:

kinetic energy electrons have orbiting the nucleus.
repulsive force occurring among electrons within the same shell.
repulsive force occurring between electrons within neighboring shells.
positively charged atomic nucleus.

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Frage 105 von 150

1

If you mix a typical aluminum ion (Al, atomic no. = 13) with a typical oxygen ion (O, atomic no. = 8), what compound is formed?

Wähle eine der folgenden:

Al2O3
Al13O8
Al3O2
Al3O
Al2O2

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Frage 106 von 150

1

Which of the following elements will most likely not form an ion at all?

Wähle eine der folgenden:

Na
Mg
Br
O
Ar

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Frage 107 von 150

1

Which of the following is the weakest?

Wähle eine der folgenden:

A dipole-induced dipole attraction
A dipole-dipole attraction
An induced dipole-induced dipole attraction
An ion-dipole attraction
A chemical bond

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Frage 108 von 150

1

Which of the following compounds contains ionic bonds?

Wähle eine der folgenden:

CH4
OF2
Cl2
K2O
none of the above

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Frage 109 von 150

1

If a neutral atom loses one electron, what is the electrical charge of the atom?

Wähle eine der folgenden:

+2
-2
+1
-1
neutral

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Frage 110 von 150

1

What is the main difference between a dipole-dipole interaction and a dipole-induced dipole interaction?

Wähle eine der folgenden:

Dipole-induced dipole interactions are stronger because the induced dipoles can be formed at any time.
Dipole-dipole interactions are weaker because the dipoles are permanent.
Both are similar, but one involves a temporary dipole created by a permanent dipole.
Both are identical.
none of the above

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Frage 111 von 150

1

Which of the following statements describes a polar molecule?

Wähle eine der folgenden:

The molecules are usually not attracted to one another very strongly.
Polar molecules have the weakest intermolecular interactions with ionic compounds.
The electrons in the molecule are distributed evenly throughout the molecule.
The molecules have a high degree of symmetry.
None of these statements describe polar molecules.

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Frage 112 von 150

1

What is one role of unpaired valance electrons?

Wähle eine der folgenden:

They are the nonbonding electrons.
They tell us which Lewis dot structure is correct.
They take part in the formation of different types of bonds.
They keep the paired electrons separated to minimize interaction.
They provide the number of Lewis dots.

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Frage 113 von 150

1

Which of the following does not describe ionic compounds?

Wähle eine der folgenden:

They have a tendency to melt easily.
They are usually very ordered.
They consist of positive and negative ions.
They are held together by electrostatic attraction.
none of the above

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Frage 114 von 150

1

Which of the following molecules is the most polar?

Wähle eine der folgenden:

HCl
BrF
Br2
CO

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Frage 115 von 150

1

What is the valence shell?

Wähle eine der folgenden:

It is the shell of electrons in element V (atomic no. = 23)
It is the shell of electrons in an atom that is the least reactive.
It is the same as the orbital configuration.
It is the last partially filled orbital in an atom.
It is the outermost shell of electrons in an atom.

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Frage 116 von 150

1

Which of the following best describes ionic bonding?

Wähle eine der folgenden:

two atoms exchanging a set of electrons
two atoms sharing a set of electrons
one atom giving up some of its electrons to another atom
when two elements with same charge are held together by electrostatic forces
none of the above

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Frage 117 von 150

1

Which of the following statements is untrue?

Wähle eine der folgenden:

Covalent molecules usually have low melting points.
Covalent molecules can have nonbonding electrons.
Covalent bonds can involve more than one pair of electrons.
Covalent molecules are never crystalline.
All of the above statements are true.

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Frage 118 von 150

1

Which of the following elements will most likely form an ion with a +1 charge?

Wähle eine der folgenden:

Al
Mg
Cl
Na
Si

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Frage 119 von 150

1

Which of the following is not a property of metal?

Wähle eine der folgenden:

conducts electricity
is strong, but can be bent
does not conduct heat well
is shiny
All of the above are properties of metals.

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Frage 120 von 150

1

How many valence electrons does bromine (Br, atomic no. = 35) have?

Wähle eine der folgenden:

28
7
21
1
35

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Frage 121 von 150

1

How is the number of unpaired valence electrons in an atom related to the number of bonds that the atom can form?

Wähle eine der folgenden:

There is no defined relationship between the number of unpaired valence electrons and number of bonds that the atom can form.
The number of unpaired valence electrons in an atom is the same as the number of bonds that the atom can form.
The number of unpaired valence electrons in an atom is twice the number of bonds that the atom can form.
The number of unpaired valence electrons in an atom is one-half the number of bonds that the atom can form.

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Frage 122 von 150

1

Which of the following elements will most likely form an ion with a -2 charge?

Wähle eine der folgenden:

Mg
S
Cl
Ne
Na

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Frage 123 von 150

1

How many valence electrons does gallium (Ga, atomic no. = 31) have?

Wähle eine der folgenden:

1
31
3
6
70

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Frage 124 von 150

1

Is an ionic compound an example of a chemical compound, or is a chemical compound an example of an ionic compound?

Wähle eine der folgenden:

An ionic compound is an example of a chemical compound.
Each is an example of the other.
An chemical compound is an example of a ionic compound.
Neither is an example of the other.

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Frage 125 von 150

1

The concept of a chemical bond is ________.

Wähle eine der folgenden:

how two or more electrons reside in an orbital
the sharing of nucleons
how two or more atoms are held together
how much energy it takes to remove an electron from a set of atoms
none of the above

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Frage 126 von 150

1

How would you classify the following material?

a cappuccino (with foam)

Wähle eine der folgenden:

a solution
a heterogeneous mixture
a suspension
a compound
an element

Erklärung

Frage 127 von 150

1

Why is secondary treatment often needed for sewage?

Wähle eine der folgenden:

The solution is contaminated with dangerous bacteria.
The dissolved organics are too high and lead to bacterial growth
There are too many finely divided particles that need to be filtered.
There are too many dissolved inorganic compounds.
none of the above

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Frage 128 von 150

1

What is the difference between a compound and a mixture?

Wähle eine der folgenden:

The components of a mixture do not have the same properties individually as they do when mixed.
A compound can be physically separated into its components; a mixture cannot be physically separated into its components.
A compound is just a mixture of elements.
A mixture can be physically separated into its components; a compound cannot be physically separated into its components.
The components of a compound have the same properties individually as they do when mixed.

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Frage 129 von 150

1

Which of the following statements describes a saturated solution?

Wähle eine der folgenden:

a solution of salt water with salt at the bottom
a carbonated beverage with bubbles
a solution where the solvent cannot dissolve any more solute
all of the above
none of the above

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Frage 130 von 150

1

In a solution of 77 percent nitrogen and 23 percent oxygen, which is the solvent?

Wähle eine der folgenden:

nitrogen
oxygen
both
neither
Gases cannot form solutions.

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Frage 131 von 150

1

What is molarity?

Wähle eine der folgenden:

the number of liters of solute per mole of solution
the number of moles of solute per liter of solution
the number of moles of solute per liter of solvent
the number of grams of solute per liter of solution
none of the above

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Frage 132 von 150

1

What statement best describes a mole?

Wähle eine der folgenden:

It is a very large number chemists use to count atoms or molecules.
the amount of molecules or atoms in 1 gram of something
a very small number chemists use to count atoms or molecules
a little furry mammal that lives in the ground
none of the above

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Frage 133 von 150

1

How would you classify the following material?

swimming pool water

Wähle eine der folgenden:

heterogeneous mixture
a pure element
a pure compound
homogeneous mixture
depends on how many children have been in it

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Frage 134 von 150

1

How does a suspension differ from a solution?

Wähle eine der folgenden:

A suspension is a heterogeneous mixture consisting of different phases whereas a solution is a homogeneous mixture consisting of a single phase.
The difference between a suspension and a solution can only be determined by chemical means.
A suspension is a heterogeneous mixture whose components can be separated by simple filtration. A solution is a homogeneous mixture which cannot be separated by simple filtration.
Although a solution and suspension are both homogeneous mixtures, only the components of a suspension will separate by spinning the mixture in a centrifuge.

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Frage 135 von 150

1

Mixtures can be separated into their components by taking advantage of differences in the chemical properties of the components. Why might this separation method be less convenient than taking advantage of differences in the physical properties of the components?

Wähle eine der folgenden:

The chemical properties of the components of a mixture are too different from each other.
The chemical properties of the components of a mixture are too similar to each other.
A chemical property involves a chemical change so that you no longer have what you had.
Chemical properties are not as apparent as are physical properties.

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Frage 136 von 150

1

The following image represents which kind of matter?

Wähle eine der folgenden:

a compound
an element
a mixture
none of the above
all of the above

Erklärung

Frage 137 von 150

1

The following image represents which kind of matter?

Wähle eine der folgenden:

an element
a mixture
a compound
none of the above
all of the above

Erklärung

Frage 138 von 150

1

Which of the following solutions is the most concentrated?

Wähle eine der folgenden:

0.1 liter of water with 1 gram of sugar
0.5 liter of water with 50 grams of sugar
2 liters of water with 0.2 gram of sugar
3 liters of water with 30 grams of sugar
They all have the same concentration.

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Frage 139 von 150

1

Is the air in your house a homogeneous or heterogeneous mixture?

Wähle eine der folgenden:

heterogeneous because of the dust particles it contains
homogeneous because it is all at the same temperature
homogeneous because it is mixed very well
heterogeneous because it consists of different types of molecules

Erklärung

Frage 140 von 150

1

What is the first step in treating raw sewage?

Wähle eine der folgenden:

removal of sludge
removal of grit by settling
filtration of solids
disinfection
removal of fine particles by settling

Erklärung

Frage 141 von 150

1

Which has the most atoms?

Wähle eine der folgenden:

a mole of helium
a mole of gold
a mole of lead
All of the above have the same number of atoms.
none of the above

Erklärung

Frage 142 von 150

1

Which of the following would be considered a heterogeneous mixture?

Wähle eine der folgenden:

water
milk
vinegar
vegetable oil
salad dressing

Erklärung

Frage 143 von 150

1

In a solution made from one teaspoon of sugar and one liter of water, which is the solute?

Wähle eine der folgenden:

sugar
the teaspoon
water
both sugar and water
none of the above

Erklärung

Frage 144 von 150

1

Which of the following is a mixture?

Wähle eine der folgenden:

helium
iron
air
gold
salt

Erklärung

Frage 145 von 150

1

What is the purpose of treating water with chlorine gas or ozone during water purification?

Wähle eine der folgenden:

to improve taste
to kill bacteria
to improve color
to remove solids
none of the above

Erklärung

Frage 146 von 150

1

How is the solubility of a gas affected by temperature?

Wähle eine der folgenden:

As temperature goes up, the solubility goes up.
As temperature goes up, the solubility stays the same.
As temperature goes down, the solubility goes down.
As temperature goes down, the solubility goes up.
Both: As temperature goes up, the solubility goes up....And: As temperature goes up, the solubility stays the same.

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Frage 147 von 150

1

How is the solubility of a solid affected by temperature?

Wähle eine der folgenden:

As temperature goes up, the solubility goes up.
As temperature goes down, the solubility goes down.
As temperature goes down, the solubility goes up.
As temperature goes up, the solubility goes down.
Both: As temperature goes up, the solubility goes up. ....And: As temperature goes down, the solubility goes down.

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Frage 148 von 150

1

Which of the following accurately describes osmosis?

Wähle eine der folgenden:

The less concentrated solution gets more dilute.
The more concentrated solution absorbs water from the less concentrated solution.
The less concentrated solution absorbs water from the more concentrated solution.
The ions migrate from the more concentrated solution to the less concentrated.
none of the above

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Frage 149 von 150

1

How would you classify the following material?

coffee (with milk)

Wähle eine der folgenden:

an element
a compound
a suspension
a heterogeneous mixture
a solution

Erklärung

Frage 150 von 150

1

Which of the following would be considered a homogeneous mixture?

Wähle eine der folgenden:

hydrogen cyanide
wine
pretzel
rusty iron
sugar

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Physical Science II-Exams 1-4

Phys Scie II- Final Exam Review (Exam 4, Exam 1, & Exam 2)

Frage 1 von 150

The first minerals to crystallize are those with the

Wähle eine der folgenden:

Erklärung

Frage 2 von 150

The last minerals to crystallize from a cooling magma have a

Wähle eine der folgenden:

Erklärung

Frage 3 von 150

The protective shells that many sea organisms grow are not minerals because they

Wähle eine der folgenden:

Erklärung

Frage 4 von 150

The silicates are the largest mineral group because silicon and oxygen are

Wähle eine der folgenden:

Erklärung

Frage 5 von 150

Minerals are formed by the process of

Wähle eine der folgenden:

Erklärung

Frage 6 von 150

The first minerals to crystallize from a cooling magma have a

Wähle eine der folgenden:

Erklärung

Frage 7 von 150

Minerals are composed of

Wähle eine der folgenden:

Erklärung

Frage 8 von 150

The melting point of silicate minerals is strongly dependent on the amount of silica it contains. The first minerals to melt are those with

Wähle eine der folgenden:

Erklärung

Frage 9 von 150

The most common mineral in Earth's crust is ________, and the second most common mineral is ________.

Wähle eine der folgenden:

Erklärung

Frage 10 von 150

The last minerals to crystallize from a cooling magma have the

Wähle eine der folgenden:

Erklärung

Frage 11 von 150

Silica has a relatively

Wähle eine der folgenden:

Erklärung

Frage 12 von 150

The Mohorovicic discontinuity occurs because of a

Wähle eine der folgenden:

Erklärung

Frage 13 von 150

In comparison to P-waves, S-waves

Wähle eine der folgenden:

Erklärung

Frage 14 von 150

The Earth's magnetic field is attributed to the

Wähle eine der folgenden:

Erklärung

Frage 15 von 150

The asthenosphere is part of the

Wähle eine der folgenden:

Erklärung

Frage 16 von 150

The speed of a seismic wave depends on

Wähle eine der folgenden:

Erklärung

Frage 17 von 150

Which seismic waves produce a wave shadow?

Wähle eine der folgenden:

Erklärung

Frage 18 von 150

The Mohorovicic discontinuity marks the change in rock density elasticity between the

Wähle eine der folgenden:

Erklärung

Frage 19 von 150

The Earth's layer with plastic-like behavior is the

Wähle eine der folgenden:

Erklärung

Frage 20 von 150

The lithosphere includes

The most common mineral in Earth's crust is , and the second most common mineral is .