What is vitrification?
A. Spent fuel elements or other mixed waste are encased in ceramic or glass.
B. Spent fuel elements or other mixed waste are shot into space.
C. Spent fuel elements or other mixed waste are buried beneath the ocean floor.
D. Spent fuel elements or other mixed waste are deposited in Nevada.
Which is not considered to be low-level radioactive waste?
A. clothing for workers administering nuclear medicine
B. smoke detectors
C. spent fuel rods
D. radioactive pharmaceuticals
One approach to encourage more recycling is to institute a “bottle bill.” What is a bottle
bill?
A. a bill that outlaws the use of plastic bottles
B. a “container deposit law” that requires customers to pay a deposit for the bottle
C. a large container for recycling bottles
D. a bill that requires equal use of plastic and glass in bottles
What is the relationship between stratospheric levels of atomic chlorine and ozone?
A. As chlorine increases, ozone increases.
B. As chlorine increases, ozone decreases.
C. As chlorine changes, the effect on the ozone level is unpredictable.
D. As chlorine changes, there is no effect of the ozone level.
Consider the following equation that describes the complete combustion of propane.
The bond energies are: C H 416 kJ/mol; C C 356 kJ/mol; O O 498 kJ/mol; C O
803 kJ/mol; H O 467 kJ/mol. Which is the net energy released on complete
combustion of propane?
A. -1668 kJ/mol
B. -2024 kJ/mol
C. -4277 kJ/mol
D. -8554 kJ/mol
What international agreement attempted to reduce greenhouse gas emissions?
A. Kyoto Protocol
B. Montreal Protocol
C. Oslo Accords
D. Nuremburg Treaty
Mixing which of the following will produce a precipitation reaction (give an insoluble
product)?
A. HNO3 (aq) and Sr(OH)2(aq)
B. LiNO3 and NaI
C. Na2SO4(aq) and Ba(OH)2(aq)
D. NaOH and KBr
The aluminum-air battery is being considered for use in automobiles. In this battery,
aluminum metal undergoes oxidation to Al3+ ions and forms Al(OH)3. O2 from the air
undergoes reduction to OH ions. Which half-reaction occurs at the anode?
A. formation of OH ions from O2.
B. capturing O2 from the air so that it may form the OH ions.
C. formation of Al3+ ions from aluminum.
D. reaction of Al3+ ions with hydroxide ions to produce Al(OH)3.
One of the monomers used to make nylon is 1,6-diaminohexane (also known as
hexamethylene diamine). How many amine ( NH2) groups does it have?
A. none
B. 1
C. 2
D. 6
Every increase of one pH unit indicates
A. an increase in acidity.
B. 10 times more hydrogen ions in solution.
C. 10 times less hydrogen ions in solution.
D. none of the above.
Which atoms are present in all proteins?
A. C, H, O, N
B. C, H, O, S
C. C, H, O only
D. C, H, N only
If acids are compounds that release protons (H+), how is it that SOx and NOx cause acid
rain?
A. They react with hydrogen gas in the atmosphere to produce acids.
B. There is not sufficient evidence to indicate that these compounds actually do cause
acid rain.
C. They react with water to form acids.
D. They react with ammonia to form acids.
The EPA regulates the presence of nitrates and nitrites in water because
A. they produce nitrogen in the blood, causing a condition similar to the bends deep sea
divers can suffer from.
B. as with ammonium nitrate fertilizers, they may cause small explosions in blood
vessels causing them to rupture.
C. they interact with naturally occurring ozone in the body and remove it from the
circulatory system.
D. they interact with the blood and limit its ability to transport oxygen.
The following molecules contain only single bonds.
NH3(g) + 3F2(g) → NF3(g) + 3 HF(g)
The bond energies are: N H 391 kJ/mol; F F 158 kJ/mol; N F 272 kJ/mol; H F
566 kJ/mol. Which is the heat evolved or absorbed per mole of NH3 that reacts with F2?
A. +289 kJ/mol
B. +867 kJ/mol
C. -289kJ/mol
D. -867 kJ/mol
The name of the compound formed by combining carbon atoms with oxygen atoms
to form is
A. carbon oxide.
B. monocarbon dioxide.
C. carbon dioxide.
D. carbonate.
What is the primary determinant of the voltage developed by a battery?
A. the nature of the materials in the reaction
B. the age of the battery
C. the overall size of the galvanic cells
D. the size of the electrodes
The chemical properties of the elements are chiefly due to the number
A. of protons.
B. and distribution of the outer electrons.
C. and distribution of the inner electrons.
D. and distribution of the neutrons.
This is a schematic representation of the two different forms of polyethylene.
Which of the following statements is true?
A. I is HDPE and it has a lower melting point than II which is LDPE.
B. I is HDPE and it has a higher melting point than II which is LDPE.
C. I is LDPE and it has a lower melting point than II which is HDPE.
D. I is LDPE and it has a higher melting point than II which is HDPE.
The common OTC medication ibuprofen is sold as a racemic mixture although only the
L-isomer is a pain reliever. What does the term “racemic mixture” mean?
A. There is an equal mixture of the + and – optical isomers in the drug preparation.
B. There are two active ingredients in the drug preparation.
C. The inactive optical isomer does not cause serious side effects.
D. The inactive isomer is transformed into the active isomer in the body.
Based on its name, which carbon compound contains the fewest carbon atoms?
A. ethanol
B. methane
C. chlorobutane
D. propyl alcohol
Comparing the structures of aspirin, ibuprofen, and acetaminophen, what structural do
they share?
A. acid functional groups
B. amide functional groups
C. benzene rings
D. ester functional groups
Why is water a liquid a room temperature instead of a gas?
A. It is a gas a room temperature.
B. Water has hydrogen bonds between the molecules.
C. Water is very acidic.
D. Water is a good solvent.
How many protons, neutrons, and electrons are in a neutral atom of 64Cu (atomic
number= 29)?
A. Protons = 64, neutrons = 29, electrons = 29
B. Protons = 35, neutrons = 29, electrons = 35
C. Protons = 29, neutrons = 64, electrons = 35
D. Protons = 29, neutrons = 35, electrons = 29
PET (polyethylene terephthalate) is classified as a polyester because
A. it contains many ester linkages.
B. its monomer has ester functional groups.
C. it is used to make bullet proof vests.
D. it is made by addition polymerization.
A chemical reaction accompanied by a release of energy is called a/an ______ reaction.
A. endothermic
B. catalyzed
C. exothermic
D. fast
This symbol is found on the bottom of a Coke bottle. What does the number
mean?
A. The bottle may be recycled because it is made from PET.
B. The bottle can not be recycled because it is made from PET.
C. The bottle may be recycled because it is made from HDPE.
D. The bottle can not be recycled because it is made from HDPE.
Although coal is a complex mixture of substances, its elemental composition can be
approximated by the formula C135H96O9NS. Using this formula, predict the amount of
CO2 released from the combustion of 1.00 106 metric tons of coal (about the annual
average for a coal-fired power plant). 1 metric ton = 1 103 kg
A. 3.66 109 kg
B. 3.11 109 kg
C. 8.50 108 kg
D. 3.11 105 kg
As the ozone hole gets more pronounced, with time, one expects the incidence of skin
cancer to
A. decrease worldwide.
B. increase worldwide.
C. increase in the northern hemisphere and decrease in the southern hemisphere.
D. decrease in the northern hemisphere and decrease in the northern hemisphere.
The fact that carbon (C) is less electronegative than nitrogen (N) means that in a C N
bond, the
A. shared electrons are closer to the C atom than to the N atom.
B. shared electrons are closer to the N atom than to the C atom.
C. C atom takes the electrons from the N atom forming C and N+.
D. N atom takes the electrons from the C atom forming C+ and N.
Which of these is not a trihalomethane?
A. CHCl3
B. CH3Cl
C. CHF3
D. CHBr2Cl
In reference to waves, frequency is the
A. number of waves passing a fixed point in one second.
B. height of the wave.
C. distance between successive peaks in a wave.
D. distance between a peak in a wave to the next trough.
What distinguishes the atoms of one element from another?
A. the number of neutrons
B. the number of protons plus neutrons
C. the number of protons
D. the number of neutrons plus electrons
Consider these three compounds.
Which are isomers?
A. I and II only
B. II and III only
C. I and III only
D. I, II, and III
In an exothermic chemical reaction
A. the mass of the products is greater than the mass of the reactants.
B. the mass of the products is less than the mass of the reactants.
C. heat is released as the reaction proceeds.
D. heat is absorbed as the reaction proceeds.