Nuclear Chemistry
Practice Test
1.
What is the product of an endothermic reaction in which an inorganic phosphate group is added to adenosine diphosphate?
a.
lactic acid
b.
ADP
c.
glucose
d.
ATP
2.
Radioactivity is the spontaneous emission of radiation by a/an ________________.
a.
stable electron
b.
unstable atomic nucleus
c.
hydrogen bond
d.
covalent bond
3.
One calorie is equal to 4.184J. How much energy in joules is supplied by a breakfast bar containing 170 nutritional calories?
a.
1.7 x 10 5 J
b.
170 J
c.
711 J
d.
7.11 x 10 5 J
4.
A functional group is the part of a molecule having a specific arrangement of atoms that is largely responsible for the _______________ of the parent molecule.
a.
mass
b.
volume
c.
chemical behavior
d.
density
5.
In photosynthesis, ________________ are formed.
a.
glucose and oxygen
b.
fructose and nitrogen
c.
sucrose and water
d.
glucose and carbon dioxide
6.
These two types of plastics are easiest to collect and sort for recycling.
a.
PVC and PSEPS
b.
LDPE and PET
c.
PP and PVC
d.
PET and HDPE
7.
The sum of all the chemical reactions necessary for the life of an organism is its ____________.
a.
metabolism
b.
locomotion
c.
digestion
d.
respiration
8.
The two basic series of reactions that make up photosynthesis are called __________________.
a.
the light reactions and the carbon dioxide cycle
b.
the light reactions and the Calvin cycle
c.
the dark reactions and the nitrogen cycle
d.
the light reactions and the oxygen cycle
9.
More than 95% of the atoms in your body are these four elements.
a.
oxygen, hydrogen, calcium, and carbon
b.
iron, phosphorus, carbon, and hydrogen
c.
hydrogen, iron, silicon, and oxygen
d.
oxygen, carbon, hydrogen, and nitrogen
10.
This element accounts for most of the radiation to which people are exposed.
a.
hydrogen
b.
radon
c.
carbon
d.
phosphorus
11.
An exothermic reaction has a ______________
H.
a.
negative
b.
positive
c.
high
d.
zero
12.
An exothermic reaction is one that _______________.
a.
absorbs heat
b.
neither releases nor absorbs heat
c.
produces smoke
d.
releases heat
13.
Gamma radiation produced by cobalt-60 is often used to ________________.
a.
produce other radioisotopes
b.
diagnose cancer
c.
destroy cancerous cells
d.
conduct PET scans
14.
These two elements catalyze reactions that remove pollutants in typical automobile catalytic converters.
a.
gold and silver
b.
platinum and rhodium
c.
molybdenum and sodium
d.
iron and copper
15.
What is the monomer in the natural polymer known as cellulose?
a.
sucrose
b.
glucose
c.
ribose
d.
methanol
16.
What type of organic compound is characterized by a hydroxy functional group bonded to a carbon atom of a hydrocarbon?
a.
an alcohol
b.
octane
c.
an aldehyde
d.
carbon dioxide
17.
In Einstein's famous equation E = mc
2
, which relates energy and mass, c represents the ___________________.
a.
specific heat
b.
speed of sound
c.
speed of light
d.
caloric content
18.
Carbohydrates are made up of these three elements.
a.
carbon, phosphorus, and hydrogen
b.
carbon, calcium, and hydrogen
c.
carbon, nitrogen, and oxygen
d.
carbon, hydrogen, and oxygen
19.
These particles sustain a nuclear fission chain reaction.
a.
alpha particles
b.
protons
c.
beta particles
d.
neutrons
20.
The half-life of technetium-99 is 6.0 hours. How much of a 1.000-gram sample remains after 18.0 hours?
a.
8.000 g
b.
0.250 g
c.
0.500 g
d.
0.125 g
