Download 1. Atoms that have eight valence electrons would tend to A) be very

1.
A)
B)
C)
D)
Atoms that have eight valence electrons would tend to
be very reactive.
be inert.
form positive ions.
form negative ions.
2.
A)
B)
C)
D)
Phenomena such as diffraction and interference can be most easily explained in terms of the
ray model of light.
particle model of light.
wave model of light.
photoelectric effect.
3.
A)
B)
C)
D)
Photons of which of the following colors of light possess the greatest amount of energy?
blue
green
yellow
red
4.
A)
B)
C)
D)
When atoms of non-metallic elements react with one another, they tend to seek stability by
acquiring a noble gas electron arrangement
losing electrons
forming ionic bonds
none of these
5.
A)
B)
C)
D)
F.
Identify the number of protons, neutrons and electrons in an atom of 9
9 protons, 10 neutrons and 9 electrons
9 protons, 10 neutrons and 10 electrons
9 protons, 19 neutrons and 9 electrons
10 protons, 9 neutrons and 10 electrons
6.
A)
B)
C)
D)
Because of our belief in the law of conservation of mass, it seems reasonable that
in combustion reactions, part of the mass of the reactants must be converted into fire.
the mass of a newly formed compound cannot be changed.
molecules cannot be broken down for the mass would be reduced.
the number of atoms of reactants must equal the number of atoms of products.
7.
A)
B)
C)
D)
The photoelectric effect could not be adequately explained with a wave model of light because
the energy of the electrons ejected from a metal varied directly with the intensity.
the number of electrons ejected from a metal depended upon the intensity.
the number of electrons ejected from a metal depended upon the wavelength.
the energy of the ejected electrons did not depend upon the intensity.
8.
A)
B)
C)
D)
In an ionic compound, the metal
usually forms a negative ion.
takes the “-ide” ending.
has a Greek prefix like mono, di or tri.
is written first.
9.
A)
B)
C)
D)
Evidence of a chemical reaction includes
a color change
a change in temperature
the production of a gas
all of these
19
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10.
A)
B)
C)
D)
When monochromatic light from two slits arrive at a point on a screen out of phase,
a dark region is produced.
a bright region is produced.
two different colors of light are observed.
a region of polarized light is produced.
11.
A)
B)
C)
D)
An oxidizing agent is a substance that
reacts with oxygen.
removes electrons from another substance.
supplies electrons to another substance.
frees a metal from its ore.
12.
A)
B)
C)
D)
The reaction: potassium chlorate
decomposition
combination
replacement
ion exchange



potassium chloride and oxygen gas is an example of
13. Using the laws governing moving particles and the forces of electrical attraction, Bohr reasoned that
electrons could
A) move in orbits whose radii depended on their velocity.
B) move, as the planets, in orbits at any distance from the nucleus.
C) move in orbits whose radii matched the distances between the lines in the hydrogen spectrum.
D) move only in orbits whose radii were integer multiples of a constant.
14.
A)
B)
C)
D)
Neutral atoms of a given element all have the same
number of protons.
atomic number.
number of electrons.
all of these are true.
15.
A)
B)
C)
D)
The formation of an ionic bond
involves a transfer of one or more electrons.
results in a release of energy.
helps atoms achieve a noble gas electron arrangement.
all of these.
16.
A)
B)
C)
D)
A solution with a pH of 2
is twice as acidic as one with a pH of 1.
is half as acidic as a solution with a pH of 1.
is ten times as acidic as a solution with a pH of 1.
is one tenth as acidic as a solution with a pH of 1.
17.
A)
B)
C)
D)
A hydrogen bond is
what holds the atoms of a water molecule together.
a force between hydrogen atoms in adjacent water molecules.
a force between a hydrogen atom of one polar molecule and another polar molecule.
a force between a hydrogen atom and a metal.
18.
A)
B)
C)
D)
Robert Millikan discovered that
the charge to mass ratio of electrons was constant.
the electron carries the smallest unit of electrical charge.
the oil droplets all carried the same amount of charge.
the electrons contained most of the mass of an atom.
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19. When Rutherford found that some of the alpha particles fired at the gold foil were widely deflected, he
concluded that
A) gold was an element, not a compound as previously believed.
B) atoms are solid, with spaces between them.
C) atoms are electrically neutral.
D) the positive charge in an atom is concentrated in a tiny nucleus.
20.
A)
B)
C)
D)
The atomic number of an element is the number of
protons
protons and neutrons
protons and electrons
all the particles in the atom.
21.
A)
B)
C)
D)
In liquid solutions, the solute is
a solid.
a liquid.
a gas.
all of these could be true.
22.
A)
B)
C)
D)
The image formed by a plane mirror is
virtual
real
a result of diffuse reflection
smaller than the object
23.
A)
B)
C)
D)
Rutherford concluded from his calculations that the volume of an atom
is filled with protons, neutrons and electrons.
is mostly protons, with electrons revolving around the outside.
is filled with electrons.
is mostly empty space.
24.
A)
B)
C)
D)
Polarized light vibrates
only in one plane.
in two planes at right angles to one another.
in all planes.
not at all.
25. The fact that wavelengths of the four lines in the Balmer series fit a regular pattern was evidence
supporting the idea that
A) electrons could exist in only four energy states in a hydrogen atom.
B) there must be four electrons in each hydrogen atom.
C) electrons could only gain or lose specific amounts of energy in hydrogen atoms.
D) electrons were continuously losing energy.
26.
A)
B)
C)
D)
Ionic compounds are generally
white, crystalline solids
gaseous substances
syrupy liquids
amorphous solids.
27. The smallest unit of a covalent compound that still retains the properties of the compound is called a
(an)
A) electron
B) atom
C) molecule
D) dipole
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28.
A)
B)
C)
D)
The amount of energy released when wood is burned is
greater than the amount of solar energy absorbed during its formation.
equal to the amount of solar energy absorbed during its formation.
less than the amount of solar energy absorbed during its formation.
greater or less than the amount of solar energy absorbed during its formation, depending on how it is
burned.
29.
A)
B)
C)
D)
Which of the following is a sign of an ion exchange reaction?
a precipitate is formed.
a compound is broken down into simpler substances.
a reactant is oxidized.
a metal ion is reduced.
30.
A)
B)
C)
D)
Polar compounds such as alcohol would be expected to be
more soluble in water than in non-polar solvents.
more soluble in non-polar solvents than in water.
equally soluble in water and non-polar solvents.
none of these are true.
31.
A)
B)
C)
D)
J. J. Thomson reasoned that cathode rays were really charged particles because
a magnet deflected cathode rays.
cathode rays formed only when the air was pumped out of a discharge tube.
the properties of the cathode rays depended on the cathode material.
the cathode rays were attracted to the anode.
32.
A)
B)
C)
D)
Which of the following are properties of basic solutions?
They turn the dye litmus red.
They taste sour.
They feel slippery.
They react with active metals to produce hydrogen gas.
33.
A)
B)
C)
D)
What is the most likely temperature of the water at the bottom of Lake Superior in the winter?
0ºC
4ºC
10ºC
The temperature is pretty variable.
34.
A)
B)
C)
D)
Isotopes of an element are atoms that have
the same number of protons, but a different number of electron.
the same number of neutrons, but a different number of protons.
the same number of protons, but a different number of neutrons.
equal numbers of protons and neutrons.
35.
A)
B)
C)
D)
Which of the following solutions is likely to have a pH less than 7?
sodium chloride
ammonia
carbonic acid
pure water
36.
A)
B)
C)
D)
Max Planck discovered that the blackbody radiation emitted by vibrating molecules
was continuous, like a train of waves
was constant for all objects.
varied greatly from one experiment to the next.
appeared to come in multiples of certain fixed amounts.
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37. The reaction between water solutions of sodium chloride and silver nitrate produces a precipitate:
NaCl(aq) + AgNO3(aq)
NaNO3(aq) + AgCl(s). This is an example of
A) decomposition
B) combination
C) replacement
D) ion exchange
38. Which combination of elements results in the formation of a white crystalline solid that dissolves to form
a solution that conducts electricity?
A) metal and metal
B) non-metal and non-metal
C) metal and non-metal
D) metal and metalloid
39.
A)
B)
C)
D)
Water solutions of ionic substances that conduct electricity are called
electrical solutions
polar solutions
electrolytes
indicators
40.
A)
B)
C)
D)
A prism separates the colors of sunlight into a spectrum because
red light is refracted the most, while violet light is refracted the least.
longer wavelengths are bent more than shorter wavelengths.
each wavelength of light has its own index of refraction.
it polarizes the different wavelengths of light.
41.
A)
B)
C)
D)
The sun appears reddish as it sets because
the sun emits more radiation at longer wavelengths at sunset.
more of the shorter, bluer wavelengths are scattered by the dust and haze.
the Doppler shift lowers the frequency as a given spot on the earth rotates away from the sun.
more of the longer, redder wavelengths are scattered by the atmosphere.
42.
A)
B)
C)
D)
We explain light today
mostly with particle models.
mostly as a wave phenomenon.
as having both wave and particle behavior.
as something completely unknown.
43.
A)
B)
C)
D)
The reaction 2 Mg + O2
oxidation
combination
combustion
all of these
44.
A)
B)
C)
D)
Which of the following are properties of acidic solutions?
They turn the dye litmus red.
They taste sour.
They react with active metals to produce hydrogen gas.
All of these are true.
45.
A)
B)
C)
D)
Hydrogen bonding in water accounts for
water's higher than expected boiling temperature.
the fact that ice floats in liquid water.
the fact that snowflakes are 6-sided.
all of these are true.
2 MgO is an example of
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46.
A)
B)
C)
D)
What type of chemical bond does the sharing of a pair of electrons form?
covalent
ionic
metallic
double
47.
A)
B)
C)
D)
What do solutions of acids, bases and salts have in common?
They are proton donors.
They are proton acceptors
They all have a pH of less than 7
They are electrolytes.
48.
A)
B)
C)
D)
The energy of a photon of light emitted by an electron equals
the energy of the level it currently occupies.
the energy of the level it just left.
the energy of the ground state of the atom.
the difference in energy between two levels.
49.
A)
B)
C)
D)
A chemical bond that involves somewhat unequal sharing of electrons is called
ionic
covalent
polar
coordinate covalent
50. Atoms from an element in group IIA are allowed to react with atoms from an element in group VIIA.
What type of compound is likely to form?
A) ionic
B) covalent
C) polar
D) none at all
51.
A)
B)
C)
D)
The reaction: 2 NaI + Cl2
decomposition
combination
replacement
ion exchange
2 NaCl + I2 is an example of
52.
A)
B)
C)
D)
The formation of a positive ion
occurs when an atom gains a proton.
involves a release of energy.
occurs when an electron is removed from an atom.
occurs in covalent bonding.
53. Air is considered to be a homogeneous mixture that is 79 percent nitrogen gas, 20 percent oxygen gas
and 1 percent all the other gases. In this mixture, nitrogen can be considered
A) a solvent
B) a solute
C) a solution
D) saturated
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53.
B
C
A
A
A
D
D
D
D
A
B
A
D
D
D
D
C
B
D
A
D
A
D
A
C
A
C
B
A
A
A
C
B
C
C
D
D
C
C
C
B
C
D
D
D
A
D
D
C
A
C
C
A
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