Chemistry in the Environment
Practice Test
1.
Which of the following describes oxidation?
a.
loss of electrons
b.
gain of positive charge
c.
gain of electrons
d.
loss of positive charge
2.
The practical use of scientific information is ___________.
a.
technology
b.
engineering
c.
pure research
d.
applied research
3.
Atoms with large ionization energy values are __________.
a.
more likely to form positive ions
b.
lacking valence electrons
c.
less likely to form positive ions
d.
most likely to lose their outer electrons
4.
How is the slope of a linear graph calculated?
a.
slope = (x
2
– x
1
) / (y
2
– y
1
)
b.
slope = (y
2
– y
1
) x 100
c.
slope = (x
2
– x
1
) / 100
d.
slope = (y
2
– y
1
) / (x
2
– x
1
)
5.
What atoms make up ozone?
a.
two oxygen atoms
b.
three oxygen atoms
c.
two nitrogen atoms
d.
two oxygen atoms and one nitrogen atom
6.
What term is used to describe all the water on Earth’s surface?
a.
aquifer
b.
oceans
c.
hydrosphere
d.
troposphere
7.
What is the natural warming of Earth’s surface that occurs when certain gases in the atmosphere absorb heat?
a.
carbon cycle
b.
vulcanism
c.
greenhouse effect
d.
photosynthesis
8.
What relationship is demonstrated by the expansion of a gas—filled balloon when it is heated?
a.
Charles’s law
b.
Boyle’s law
c.
Avogadro’s number
d.
Gay-Lussac’s law
9.
Although nitrogen gas cannot be used by plants, it can be converted into forms that plants can use. What process converts nitrogen gas into this more useful form?
a.
photosynthesis
b.
global warming
c.
precipitation
d.
nitrogen fixation
10.
The most electronegative atom in a compound has a charge that is __________.
a.
negative
b.
zero
c.
neutral
d.
positive
11.
Elements in the d block are also known as _______________.
a.
alkaline earth metals
b.
alkali metals
c.
lanthanide metals
d.
transition metals
12.
Which part of the atmosphere is closest to Earth’s surface?
a.
mesosphere
b.
troposphere
c.
stratosphere
d.
thermosphere
13.
What term is used to describe a metal-containing mineral that can be processed for a reasonable profit?
a.
crust
b.
gangue
c.
slag
d.
ore
14.
Which of the following resulted in Earth's core becoming more dense than its crust?
a.
rapid heating
b.
oxygenation
c.
high electronegativity
d.
gravity
15.
The representation of data on graph that resembles a pizza is a _________.
a.
circle graph
b.
bar graph
c.
inverse
d.
line graph
16.
What is the name given to research that is undertaken to solve a specific problem?
a.
technology
b.
pure research
c.
applied research
d.
theoretical research
17.
Seawater is desalinated commercially in some areas of the world by _____________.
a.
distillation
b.
adsorption
c.
reverse osmosis
d.
precipitation
18.
Which of the following is the general valence electron configuration for the alkaline earth elements?
a.
ns
1
b.
ns
2
np
1
c.
ns
2
np
2
d.
ns
2
19.
The ionic compound, sodium chloride, is formed from atoms of the elements sodium and chlorine. What happens to the size of each atom when it forms an ion?
a.
Sodium increases in size and chlorine increases in size.
b.
Sodium decreases in size and chlorine increases in size.
c.
Sodium increases in size and chlorine decreases in size.
d.
Sodium decreases in size and chlorine decreases in size.
20.
A sample of helium occupies 2.20 L at 1.0 atm. What is the volume at 1.5 atm?
a.
1.5 L
b.
0.68 L
c.
2.20 L
d.
1.0 L
