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Chapter 2
Chapter Test
Chapter Test
Read the questions carefully and choose the best answer.
This activity contains 26 questions.
Geologic processes are directly related to rocks and minerals.
True
False
Elements are substances that cannot be broken down into simpler substances by chemical or physical means.
True
False
Identify the subatomic particles indicated on the simplified model of the atom by selecting the correct response.
(Atom diagram, Copyright © Prentice Hall, Inc.)
This question presents 5 items numbered 3.1 through 3.5. Each item is presented with a pulldown menu containing the letters A through E.
For each item below, use the pull-down menu to select the letter that labels the correct part of the image.
3.1 proton
[hint]
A
B
C
D
E
3.2 neutron
[hint]
A
B
C
D
E
3.3 atom
[hint]
A
B
C
D
E
3.4 electron
[hint]
A
B
C
D
E
3.5 nucleus
[hint]
A
B
C
D
E
The three basic forms of matter are solid, liquid, and gas.
True
False
A/An _________ is the same as an atom except that it has an electrical charge because of a gain or loss of electrons.
isotope
mineral
principal shell
ion
nucleus
When isotopes are unstable they can spontaneously disintegrate through a process called
radioactive decay
ionization
covalent bonding
cleaving
none of the above
Atoms of the same element possess the same number of
neutrons
isotopes
ions
protons
compounds
Only 10 elements compose the bulk of the rock-forming minerals in the continental crust.
True
False
This bond is produced by the sharing of electrons.
van der Waals
covalent
hydrostatic
ionic
none of the above
Which one of the following statements concerning minerals is
not
true?
formed of atoms
definite chemical structure
solid
naturally occurring
organic
The structure of the silicon-oxygen tetrahedron consists of four oxygen atoms surrounding a smaller silicon atom.
True
False
___________ compares the weight of a mineral to the weight of an equal volume of water.
Double refraction
Hardness
Streak
Specific gravity
Luster
Cleavage is described by
the number of planes exhibited
the angles at which the planes meet
the crystal form
a and b only
all of the above
Granite is a mineral.
True
False
Nonsilicate minerals are notable because
they include metallic ores
they provide clues to the sedimentary environment
some are economically important
all of the above
none of the above
One of the most useful diagnostic properties of minerals is the color.
True
False
Each silicate mineral has a structure and chemical composition that indicate the conditions under which it formed.
True
False
Which of the following materials has a hardness of between 3 and 4?
gypsum
copper penny
apatite
fingernail
wire nail
Silicate minerals tend to cleave
between the Si-O bonds
randomly
across Si-O bonds
breaking the Si-O bond
none of the above
The streak of metallic minerals tends to be
light
blue
dark
white
none of the above
Which of the following is
not
a silicate mineral structure?
three-dimensional framework
sheets
double chains
single chain
none of the above
Which silicate mineral group has a double-chain silicate structure?
quartz
feldspars
micas
pyroxenes
amphiboles
Quartz has three planes of cleavage, one for each dimension of its silicate structure.
True
False
Which of the following materials is comprised of minerals?
obsidian
limestone
coal
pumice
all of the above
After ancient seas evaporate, thick layers of this mineral can be formed and later mined for economic use.
diamonds
halite
quartz
galena
none of the above
The status of an ore deposit depends on
the mining operation
consumer demand
the price
the concentration of elements
all of the above
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