Ch. 1
1.All isotopes are radioactive.
ANS:
F
REF:
K/U
OBJ:
1.3
LOC:
MC1.01
2. Chemical and physical properties always repeat periodically when the elements are arranged from lightest to heaviest.
ANS:
F
REF:
K/U
OBJ:
1.5
LOC:
MC1.02
1.3
LOC:
MC3.01
LOC:
MC1.02
3. Transuranic elements can be produced in nuclear reactions.
ANS:
T
REF:
K/U
OBJ:
4. The radius of an ion is always larger than the atomic radius of the original atom.
ANS:
F
REF:
K/U
OBJ:
1.5
5. Groups 1 and 2 and 13 through 17 are called representative elements because all other elements react in the same way
that they do.
ANS:
F
REF:
K/U
OBJ:
1.1
LOC:
MC1.02
OBJ:
1.3
LOC:
MC1.01
OBJ:
1.3
LOC:
MC1.01
OBJ:
1.3
LOC:
MC1.01
6. Carbon-12 and carbon-14 have different atomic numbers.
ANS:
F
REF:
K/U
7. Alpha radiation is made up of helium nuclei.
ANS:
T
REF:
K/U
8. Radiation can be produced if a nucleus decays.
ANS:
T
REF:
K/U
9. All experts agree that nuclear power is the cleanest and most efficient method of energy production for the short and
long term.
ANS:
F
REF:
MC
OBJ:
1.3
LOC:
MC3.01
10. In Canada, nuclear waste may eventually be stored in abandoned mines.
ANS:
T
REF:
MC
OBJ:
1.3
LOC:
MC3.01
OBJ:
1.5
LOC:
MC1.06
OBJ:
1.5
LOC:
MC1.06
OBJ:
1.5
LOC:
MC2.02
11. Sodium is more reactive than potassium.
ANS:
F
REF:
K/U
12. The most reactive element in Group 17 is fluorine.
ANS:
T
REF:
K/U
13. Francium is the most reactive element.
ANS:
T
REF:
K/U
14. In an atom, the nuclear charge has a greater effect on ionization energy than atomic radius.
ANS:
F
REF:
I
OBJ:
1.5
Ch. 2
1.Metals usually combine with nonmetals to form covalent compounds.
LOC:
MC2.02
ANS:
F
REF:
K/U
OBJ:
2.2
LOC:
MC1.04
2. If a molecule has a positive end and a negative end it is considered to be polar.
ANS:
T
REF:
K/U
OBJ:
2.4
LOC:
MC2.03
OBJ:
2.3
LOC:
MC1.04
3. Nonmetals combine to form molecular compounds.
ANS:
T
REF:
K/U
4. Substances that form solutions that conduct heat are called electrolytes.
ANS:
F
REF:
I
OBJ:
2.1
LOC:
MC1.03
OBJ:
2.2
LOC:
MC1.03
5. Ionic compounds are easily dissolved in water.
ANS:
T
REF:
I
6. You can distinguish between ionic and molecular compounds by attempting to dissolve them in toluene.
ANS:
F
REF:
I
OBJ:
2.1
LOC:
MC1.03
LOC:
MC1.03
7. A compound that is brittle is most likely a molecular compound.
ANS:
F
REF:
I
OBJ:
2.2
8. A student allows a colourless liquid to run out of a buret. She finds that the stream of liquid is attracted to a charged
ebonite rod. The liquid is, therefore, ionic.
ANS:
F
REF:
I
OBJ:
2.2
LOC:
MC1.03
LOC:
MC2.03
9. Polar compounds are attracted to both positive and negative charges.
ANS:
T
REF:
K/U
OBJ:
2.4
10. The International Union of Pure and Applied Chemistry (IUPAC) suggests the rules for naming chemical compounds.
ANS:
T
REF:
MC
OBJ:
2.5
LOC:
MC2.05
LOC:
MC1.03
LOC:
MC1.03
LOC:
MC1.03
LOC:
MC1.05
LOC:
MC1.05
11. The smallest unit of a molecular compound is known as a formula unit.
ANS:
F
REF:
K/U
OBJ:
2.2
12. Nonmetals have a strong tendency to gain electrons; however, metals do not.
ANS:
T
REF:
K/U
OBJ:
2.3
13. A large amount of energy is needed to separate the atoms that make up molecules.
ANS:
T
REF:
K/U
OBJ:
2.3
Ch 3
1.A synthesis reaction always involves two or more elements forming a compound.
ANS:
F
REF:
K/U
OBJ:
3.2
2. Decomposition reactions have products that are less complex than the reactant.
ANS:
T
REF:
K/U
OBJ:
3.2
3. Single displacement reactions always involve an element and a compound as reactants.
ANS:
T
REF:
K/U
OBJ:
3.3
LOC:
MC1.05
3.3
LOC:
MC1.06
4. There is an activity series for metals and another for halogens.
ANS:
T
REF:
K/U
OBJ:
5. Most of the metals found above hydrogen in the activity series are found as elements in the ground.
ANS:
F
REF:
K/U
OBJ:
3.3
LOC:
MC1.06
6. Iron can be made resistant to corrosion by combining it with small amounts of other metals.
ANS:
T
REF:
K/U
OBJ:
3.3
LOC:
MC1.06
7. Alloys have characteristics that are identical to their "parent" metals.
ANS:
F
REF:
K/U
OBJ:
3.3
LOC:
MC3.04
K/U
OBJ:
3.3
LOC:
MC1.06
8. Gold is a highly reactive metal.
ANS:
F
REF:
9. If barium hydroxide is produced in a reaction, it will precipitate out of solution.
ANS:
F
REF:
I
OBJ:
3.4
LOC:
MC3.03
OBJ:
3.3
LOC:
MC1.05
3.3
LOC:
MC3.03
3.4
LOC:
MC1.05
3.3
LOC:
MC3.01
10. The corrosion of iron is a single displacement reaction.
ANS:
T
REF:
K/U
11. Hydrogen is in the activity series because it is classified as a metal.
ANS:
F
REF:
K/U
OBJ:
12. Neutralization reactions are double displacement reactions.
ANS:
T
REF:
K/U
OBJ:
13. Galvanizing iron involves coating it with a less reactive metal.
ANS:
F
Ch. 1 Completion
REF:
K/U
OBJ:
1. Two elements have electron affinities of 0.75 eV and 1.4 eV. The first element is ____________________ likely to
form a negative ion than the second.
ANS:
LOC:
more
MC2.02
REF:
I
OBJ:
1.5
2. The atomic radii of nitrogen, oxygen, and fluorine are 70 m, 66 m, and 64 m, respectively. One would expect that
of the three, the atom with the lowest electron affinity would be ____________________.
ANS:
LOC:
nitrogen
MC2.02
REF:
I
OBJ:
1.5
3. The atomic radii of nitrogen, oxygen, and fluorine are 70 m, 66 m, and 64 m, respectively. One would expect that
of the three, the atom with the highest electronegativity would be ____________________.
ANS:
fluorine
REF:
I
OBJ:
1.5
LOC:
MC2.02
4. In the periodic table, Group(s) ____________________ is/are made up of elements that are solid at SATP, are highly
reactive, and have low electron affinities.
ANS:
LOC:
1 and 2
MC2.02
REF:
I
OBJ:
1.1
5. In the periodic table, the elements known as the ________________________ are hard metals with high melting points,
good conductivity of heat and electricity, and variable reactivity.
ANS:
LOC:
transition metals
MC2.02
REF:
I
OBJ:
1.1
6. The disposal of nuclear waste is a problem because some nuclear waste has very long ____________________.
ANS:
LOC:
half-lives
MC3.01
REF:
MC
OBJ:
1.3
7. One substance used for dating ancient objects is _________________________.
ANS:
carbon-14, C-14
potassium-40, K-40
REF:
MC
OBJ:
1.3
LOC:
MC3.01
8. A medical professional who uses radioisotopes either for diagnosing health problems or for treating them is called a
____________________.
ANS:
LOC:
radiologist
MC3.01
REF:
MC
OBJ:
1.3
OBJ:
1.3
9. Uranium-235 is used as fuel in ____________________ nuclear reactors.
ANS:
LOC:
CANDU
MC3.01
REF:
MC
10. CANDU nuclear reactors use ____________________ as a moderator.
ANS:
heavy water
REF: MC
OBJ: 1.3
LOC:
MC3.01, MC3.02
Ch2.
1. Substances that form solutions that conduct electricity are called ____________________.
ANS:
LOC:
electrolytes
MC1.03
REF:
K/U
OBJ:
2.1
2. Electrons in the outermost energy level of an atom or molecule are called ____________________ electrons.
ANS:
LOC:
valence
MC2.04
REF:
K/U
OBJ:
2.2
OBJ:
2.2
3. The most stable ion of barium has a charge of ____________________.
ANS:
LOC:
2+
MC1.03
REF:
K/U
4. Electron transfers result from the large difference in _________________________ between metals and nonmetals.
ANS:
LOC:
electronegativities
MC1.03
REF:
K/U
OBJ:
2.2
5. Molecules that contain only two atoms are called ____________________.
ANS:
LOC:
diatomic molecules
MC1.04
REF:
K/U
OBJ:
2.3
6. The number of covalent bonds that an atom can form is known as its ____________________.
ANS:
LOC:
bonding capacity
MC1.04
REF:
K/U
OBJ:
2.3
7. When both electrons that make up a bond are provided by the same atom, the bond is called a
_________________________ bond.
ANS:
LOC:
coordinate covalent
MC1.04
REF:
K/U
OBJ:
2.3
8. Forces that bond atoms and ions together within a compound are called ____________________ forces.
ANS:
LOC:
intramolecular
MC1.04
REF:
K/U
OBJ:
2.3
9. A bond that is somewhere between an ionic bond and a covalent bond is called a ____________________ bond.
ANS:
LOC:
polar covalent
MC2.03
REF:
K/U
OBJ:
2.4
OBJ:
2.5
10. The charge on an ion is sometimes called the ____________________.
ANS:
LOC:
valence
MC2.05
REF:
K/U
Ch. 3
1.In a(n) ____________________ reaction, two or more substances combine to form a single product.
ANS:
LOC:
synthesis
MC1.05
REF:
K/U
OBJ:
3.2
2. In a(n) ____________________ reaction, a compound decomposes to form two or more substances.
ANS:
LOC:
decomposition
MC1.05
REF:
K/U
OBJ:
3.2
3. In a(n) _________________________ reaction, one element replaces another similar element in a compound.
ANS:
LOC:
single displacement
MC1.05
REF:
K/U
OBJ:
3.3
4. A listing of metals from most reactive to least reactive is called the ____________________.
ANS:
LOC:
activity series
MC1.06
REF:
K/U
OBJ:
3.3
OBJ:
3.3
5. A(n) ____________________ is a homogeneous mixture of two or more metals.
ANS:
LOC:
alloy
MC3.01
REF:
K/U
6. The unwanted reaction of metals with chemicals in the environment is known as ____________________.
ANS:
LOC:
corrosion
MC3.01
REF:
K/U
OBJ:
3.3
7. A(n) _________________________ reaction is one in which aqueous ionic compounds rearrange cations and anions,
resulting in the formation of new compounds.
ANS:
LOC:
double displacement
MC1.05
REF:
K/U
OBJ:
3.4
8. A solid that is formed from a reaction that takes place in solution is known as a ____________________.
ANS:
LOC:
precipitate
MC3.01
REF:
K/U
OBJ:
3.4
9. The combustion of carbon can be considered a(n) ____________________ reaction.
ANS:
combustion
synthesis
REF:
K/U
OBJ:
3.2
LOC:
MC1.05
10. ____________________ is a light metal that is relatively expensive to mine and refine.
ANS:
LOC:
Aluminum
MC3.01
REF:
MC
OBJ:
3.3
Ch. 1 Essay
1.Explain, in your own words, how a CANDU reactor works.
2. Explain, in your own words, how the modern periodic table was developed. How did the empty spaces appear in the
earlier versions?
3. Explain how carbon-14 is used to date ancient objects. Which types of objects can be tested in this way?
4. Producing electricity with nuclear power is still debatable. In a brief essay, give two reasons why we should continue to
use nuclear power and two reasons why we should not.
Ch. 2
1.The names of pharmaceutical drugs are generally given trade names. Should pharmaceutical companies be required to state
the IUPAC name for the active ingredient? Why or why not?
2. Some of the physical properties of water include high boiling point, adhesion to surfaces, cohesion of particles, and
attraction of a thin stream to charged objects. Explain these properties using Lewis theory. Draw a diagram.
3. Explain, in your own words, why ionic compounds are brittle, have extremely high melting points, and are solid at
SATP.
Ch. 3
1. Corrosion is a major problem because our society makes extensive use of iron products. However, for some metals
such as aluminum, corrosion is not a problem. Why don't we just use aluminum instead of iron and its alloys? Answer
from at least two perspectives.
2. Imagine you live in a poor community that has discovered gold deposits in its land. To recover gold from rock, the ore
is ground and mixed with lime. This mixture is then reacted with cyanide. The gold is then absorbed by carbon. A gold
mine can do wonders for the local community, but the risk of a cyanide spill has some citizens up in arms. Decide if
you think a gold mine and refinery should be constructed and support your position.
3. "Carbon dioxide, water, nitrogen, and oxygen are harmless. If we simply put a catalytic converter in each car, this
should solve our car pollution problem."
Do you agree with this statement? State reasons for your answer and explain what a catalytic converter does.