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1.
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The measurement of the amount of mass contained in a given
volume is called
A. | weight. | B. | kilogram. | C. | liter. | D. | density. |
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2.
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What is a double bond?
A. | a bond between two atoms | B. | two pairs of electrons shared between four atoms | C. | two pairs of electrons shared between two atoms | D. | one pair of electrons shared between two atoms |
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3.
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An ionic bond is the attraction between
A. | oppositely charged ions. | B. | similarly charged ions. | C. | neutral
atoms. | D. | neutral ions. |
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4.
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What holds atoms together in a molecule?
A. | chemical bonds | B. | temperature | C. | gravity | D. | density |
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5.
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If the volume of a substance increases and the mass stays
the same, the density of the substance will
A. | decrease. | B. | increase then
decrease. | C. | increase. | D. | stay the
same. |
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6.
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In a controlled experiment, a scientist is studying how long
it takes parachutes of different sizes to fall to the ground. What is the manipulated
variable?
A. | the time it takes for the parachute to
drop | B. | the size of the parachute | C. | the size of the object carried by the parachute | D. | the height from which the parachute is dropped |
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7.
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In which state of matter are particles packed tightly
together in fixed positions?
A. | liquid | B. | gas | C. | solid | D. | compound |
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8.
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A covalent bond in which electrons are shared unequally
is
A. | polyatomic. | B. | polar. | C. | ionic. | D. | a double
bond. |
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9.
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What is vaporization?
A. | a liquid becoming a solid | B. | a liquid becoming a gas | C. | a gas becoming a
solid | D. | a gas becoming a liquid |
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10.
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The measurement of how much matter an object contains is
its
A. | volume. | B. | mass. | C. | weight. | D. | density. |
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11.
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Which process involves a gas changing into a
liquid?
A. | freezing | B. | condensation | C. | melting | D. | vaporization |
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12.
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Which term describes a liquid changing into a
solid?
A. | vaporizing | B. | melting | C. | freezing | D. | condensing |
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13.
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Ice melts as a result of thermal energy flowing from
the
A. | ice to its surroundings. | B. | solid to the liquid. | C. | surroundings to the
ice. | D. | inside of the ice to the outside of the
ice. |
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14.
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Which of these particles has a positive
charge?
A. | neutron | B. | electron | C. | atom | D. | proton |
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15.
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When a substance changes from a solid to a gas without
passing through a liquid state, the change is described as
A. | condensation. | B. | evaporation. | C. | sublimation. | D. | vaporization. |
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16.
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What is an ion?
A. | an atom or group of atoms that has become electrically
charged | B. | an atom that doesn’t have
protons | C. | an atom that doesn’t have
neutrons | D. | the opposite of an
electron |
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17.
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Across a period of eight elements in the periodic table, the
number of valence electrons
A. | increases from 1 to 8. | B. | depends on the atomic numbers of the elements. | C. | is equal to the period’s number. | D. | is the same for all eight elements. |
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18.
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The elements in a column of the periodic table
A. | are in the same family. | B. | have the same atomic mass. | C. | have the same chemical
symbols. | D. | are in the same period. |
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19.
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Which type of matter consists of two or more substances that
are NOT chemically combined?
A. | atoms | B. | elements | C. | compounds | D. | mixtures |
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20.
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When the temperature of a gas decreases at constant volume,
its
A. | mass increases. | B. | pressure increases. | C. | particles move
faster. | D. | pressure decreases. |
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21.
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What characteristic must be true of a good
hypothesis?
A. | It must involve quantitative data. | B. | It must be correct. | C. | It must be testable by
observation or experiment. | D. | It must have been observed
many times. |
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22.
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How would you calculate the density of an
object?
A. | Divide its weight by its volume. | B. | Multiply its volume times its mass. | C. | Multiply its weight times its mass. | D. | Divide its mass by its volume. |
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23.
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Where are metals located in the periodic
table?
A. | in the top rows | B. | to the left of the zigzag line | C. | to the right of the zigzag
line | D. | in the middle rows |
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24.
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Which state of matter undergoes changes in volume most
easily?
A. | liquid | B. | solid | C. | gas | D. | frozen |
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25.
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Which of the following have the same number of valence
electrons?
A. | the elements in a period | B. | the elements in a group | C. | the elements having similar
atomic masses | D. | the elements having similar
atomic numbers |
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26.
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The ionic compound MgO is called
A. | magnesium oxygen. | B. | oxide magnesium. | C. | oxygen
magnesium. | D. | magnesium
oxide. |
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27.
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Data plotted on a graph results in a line that slopes upward
from left to right. This graph tells you that
A. | both variables are decreasing. | B. | when one variable increases, the other variable decreases. | C. | when one variable increases, the other variable remains the
same. | D. | when one variable increases, the other variable
increases. |
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28.
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In an experiment, the variable that changes as a result of
changes in the manipulated variable is the
A. | inferred variable. | B. | hypothesis. | C. | responding
variable. | D. | controlled variable. |
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29.
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Dalton’s theory of atoms said that the masses of
elements in a compound are always
A. | equal. | B. | in a 2 to 1
ratio. | C. | in a 4 to 1 ratio. | D. | in a constant ratio. |
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30.
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What is the greatest number of valence electrons an atom can
have?
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31.
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The modern periodic table is arranged in order of
increasing
A. | number of valence electrons. | B. | number of neutrons. | C. | atomic
mass. | D. | atomic number. |
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32.
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In chemistry, elements are represented by
A. | building blocks. | B. | ratios. | C. | symbols. | D. | formulas. |
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33.
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The measurement of the force of gravity on an object is the
object’s
A. | weight. | B. | volume. | C. | mass. | D. | density. |
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34.
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During the time it takes for an entire sample of a substance
to change from a solid to a liquid, the temperature of the substance
A. | decreases. | B. | decreases, then remains the
same. | C. | remains the same. | D. | increases. |
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35.
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A group of atoms that are bonded together is called
a(n)
A. | element. | B. | mixture. | C. | compound. | D. | molecule. |
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36.
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A chemical bond that forms when two atoms share electrons is
called a(n)
A. | polyatomic bond. | B. | crystal bond. | C. | covalent
bond. | D. | ionic bond. |
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37.
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On a long trip, a truck’s tires can get very hot,
causing
A. | their volume to decrease. | B. | their pressure to increase. | C. | the truck to go
faster. | D. | their pressure to
decrease. |
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38.
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The density of a block of wood with a volume of 50 cubic
centimeters and a mass of 100 grams is
A. | 5,000 g/cm3. | B. | 2 g/cm3. | C. | 0.5
g/cm3. | D. | 500
g/cm3. |
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39.
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Electrons involved in bonding between atoms
are
A. | positively charged. | B. | inside the nucleus. | C. | valence
electrons. | D. | closest to the
nucleus. |
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40.
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A solid is a state of matter that has a(n)
A. | indefinite volume and an indefinite
shape. | B. | indefinite volume and a definite
shape. | C. | definite volume and an indefinite
shape. | D. | definite volume and a definite
shape. |
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41.
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The greater the speed of gas particles in a container,
the
A. | greater the pressure. | B. | lower the pressure. | C. | lower the
temperature. | D. | fewer collisions there will
be. |
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42.
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An example of a qualitative observation is
A. | 2.7 g. | B. | 25°C. | C. | green. | D. | 5
km/h. |
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43.
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The force of outward push of a gas divided by the area of
the walls of the container is the gas’s
A. | pressure. | B. | density. | C. | temperature. | D. | volume. |
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44.
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One example of a physical change is
A. | burning paper. | B. | baking cookies. | C. | the rusting of
iron. | D. | mixing a milkshake. |
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45.
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In which state of matter would a substance have the least
thermal energy?
A. | vapor | B. | liquid | C. | gas | D. | solid |
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46.
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Where are nonmetals located on the periodic
table?
A. | in Groups 1 through 4 | B. | to the left of the zigzag line | C. | in the two bottom
rows | D. | to the right of the zigzag
line |
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47.
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Mendeleev created the first periodic table by arranging
elements in order of
A. | decreasing atomic mass. | B. | increasing densities. | C. | increasing atomic
number. | D. | increasing atomic mass. |
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48.
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Which skill are you using if you identify a trend or pattern
seen in a graph?
A. | developing hypotheses | B. | posing questions | C. | inferring | D. | interpreting
data |
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49.
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Very energetic particles that move in all directions around
the nucleus of an atom are
A. | charges. | B. | neutrons. | C. | protons. | D. | electrons. |
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50.
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How many chloride ions are needed to cancel the 2+ charge of
magnesium in magnesium chloride (MgCl2)?
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51.
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When an atom loses an electron, it becomes a
A. | negative ion. | B. | neutral atom. | C. | positive
ion. | D. | neutral ion. |
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52.
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You want to know if the temperature of water affects how
quickly a cube of sugar will dissolve, or seem to disappear, into the water. In a controlled
experiment, what would be the responding variable?
A. | the amount of water | B. | the size of the sugar cube | C. | the temperature of the
water | D. | the time it takes for the sugar cube to dissolve in the
water |
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53.
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Which elements share characteristics with both metals and
nonmetals?
A. | transition elements | B. | metalloids | C. | halogens | D. | alloys |
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54.
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What information in the periodic table indicates the number
of protons in an atom?
A. | the element’s atomic mass | B. | the element’s atomic number | C. | the position of the element
in its column | D. | the element’s
chemical symbol |
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55.
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The resistance of a liquid to flowing is its
A. | temperature. | B. | pressure. | C. | volume. | D. | viscosity. |
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56.
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Substances that CANNOT be broken down chemically into other
substances are
A. | liquids. | B. | mixtures. | C. | elements. | D. | compounds. |
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57.
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In which state of matter do the particles spread apart and
fill all the space available to them?
A. | liquid | B. | gas | C. | solid | D. | crystal |
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58.
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From an element’s location in the periodic table, you
can predict
A. | its properties. | B. | its chemical name. | C. | its chemical
symbol. | D. | when it was discovered. |
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59.
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One example of a chemical change is
A. | boiling water. | B. | burning gasoline in an engine. | C. | cutting up
paper. | D. | crushing a can. |
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60.
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The energy a substance has from the movement of its
particles is called
A. | thermal energy. | B. | light energy. | C. | potential
energy. | D. | chemical energy. |
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