True/False
Indicate whether the sentence or statement is true or
false.
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1)
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Silicon (Si) is a
nonmetal.
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2)
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Boron (B) has 13 valence
electrons.
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3)
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Copper (Cu) is a transistional
element.
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4)
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A dot diagram is a useful tool
when examining the properties of an atom of a given element. The dot diagram of an atom has one
dot for each electron orbiting the nucleus of the atom.
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5)
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Carbon dioxide is a product of
cellular respiration.
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6)
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Water is a reactant in cellular
respiration.
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7)
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Oxygen is a product of cellular
respiration.
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8)
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Oxygen is a reactant in
photosynthesis.
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Multiple
Choice
Identify the letter of the choice that best completes the statement or answers the
question.
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9)
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Buck has 4 beakers, each of
which contains 500mL of distilled water. The water in each beaker is held to a different temperature.
Beaker
1 20 degrees C
Beaker
2 15 degrees C
Beaker
3 5 degress C
Beaker
4 35 degress C
Buck adds 5 grams of sugar to each beaker
simultaneously. In which beaker will the sugar dissolve the fastest? a) | Beaker 1 | c) | Beaker 3 | b) | Beaker 2 | d) | Beaker 4 | | | | |
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10)
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Which of the following will
SLOW down a chemical reaction? a) | catalyst | c) | inhibitor | b) | enzyme | | | | |
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11)
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If you wished to speed up a
biochemical process, which of the following would be the BEST to use? a) | an inhibitor | b) | an enzyme | | | | |
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12)
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Zinc dissolves in hydrocholoric
acid. Denise has four beakers containing solutions of acid and distilled water. She
places a 1 gram ribbon of zinc into each of the beakers simultaneously, in which beaker will the
ribbon of zinc dissolve the fastest?
Acid
Water
Beaker
1
50 mL
50 mL
Beaker
2
10 mL
20 mL
Beaker
3
70 mL
100 mL
Beaker
4
5 mL
20 mL
a) | Beaker 1 | c) | Beaker 3 | b) | Beaker 2 | d) | Beaker 4 | | | | |
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Note: Refer to your
periodic chart of the elements to answer the following question(s).
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13)
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What charge is an ion of
sodium most likely to exhibit ?
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14)
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What charge is an ion of
chlorine most likely to exhibit ? a) | - 2 | d) | + 2 | b) | - 1 | e) | + 3 | c) | + 1 | | | | |
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15)
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What charge is an ion of
boron most likely to exhibit ? a) | - 2 | d) | + 2 | b) | - 1 | e) | + 3 | c) | + 1 | | | | |
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16)
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Which one of the following
elements is the best choice to serve as an example of a metal ? a) | nitrogen | c) | germanium | b) | calcium | d) | argon | | | | |
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17)
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Which one of the following
elements is the best choice to serve as an example of a nonmetal ? a) | nitrogen | c) | germainum | b) | calcium | d) | lanthanum | | | | |
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18)
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Which one of the following
elements is the best choice to serve as an example of a noble gas ? a) | nitrogen | c) | germanium | b) | calcium | d) | argon | | | | |
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19)
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Which one of the following
elements is NOT a metal ? a) | gallium | c) | cobalt | b) | bismuth | d) | selenium | | | | |
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20)
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Which one of the following
elements is the LEAST reactive ? a) | astatine | c) | chlorine | b) | bromine | d) | fluorine | | | | |
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21)
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Examine the above graphics.
Which of the above graphics best represents a dot diagram for
phosphorus ? a) | graphic A | d) | graphic D | b) | graphic B | e) | graphic E | c) | graphic C | | | | |
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22)
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Examine the above graphics.
Which of the above graphics best represents a dot diagram for
oxygen? a) | graphic a | d) | graphic d | b) | graphic b | e) | graphic e | c) | graphic c | | | | |
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23)
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What type of ion is a metal
atom MOST likely to form? a) | positive ions | b) | negative ions | c) | none, metals don't form
ions | | |
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24)
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What type of ion is an atom of
Oxygen MOST likely to form? a) | positive ion | b) | negative ion | c) | none, oxygen doesn't form
ions | | |
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25)
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Ricardo is measuring the
kinetic energy of the molecules in three 100g samples. The samples he measured were ice, water,
and steam. Which sample had the most kinetic energy? a) | ice | c) | steam | b) | water | d) | none, they all had the same
energy | | | | |
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26)
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Josie has two cubes. The
sides of both cubes are .25m in length. One cube is made of styrofoam, the other cube is made
of wood. Which cube has the greatest density? a) | can not determine | c) | wood cube | b) | styrofoam
cube | d) | both have the same density | | | | |
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27)
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Tyrell has 20mL of a
fluid. He measured the mass of the fluid as 40g. What is the density of Tyrell's
fluid? a) | can not determine | d) | 800 mL*g | b) | .5 mL/g | e) | 2 g/mL | c) | .5 g/mL | | | | |
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28)
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A jeweler has a small pot of
molten gold. He prepares a mold in the shape of a unicorn, then pours the molten gold into the
mold to form a unicorn charm to be worn on a bracelet. Consider the gold in its two forms:
molten and solid. Which of the following assumptions can you make about the density of the
gold? a) | You don't have enough information to make assumptions about the density of the
gold. | c) | The solid gold has a higher density than the molten gold. | b) | The molten gold has a higher density than the solid
gold. | d) | Both the molten gold and the solid gold have the same
density. | | | | |
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29)
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Thom takes a sample of water
and places in a beaker over a bunsen burner. He heats the sample until boils away. Which
statement is most accurate when comparing the water Thom began with, and the water vapor he
produced? a) | the water molecules were farther apart than the vapor
molecules | b) | the water molecules had more kinetic energy than the vapor
molecules | c) | the water molecules took up more space than the vapor
molecules | d) | none of the above | | |
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30)
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A cow would be most
accurately classified as a ______________ . a) | autotroph | d) | herbivore | b) | carnivore | e) | omnivore | c) | decomposer | | | | |
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31)
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A chicken would be most
accurately classified as a ____________ . a) | autotroph | d) | herbivore | b) | carnivore | e) | omnivore | c) | decomposer | | | | |
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32)
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Examine the two chemical reactions detailed in the above
graphic.
The
letters A,B,C, and D refer to the compounds directly below the letter.
Which letter best refers to a compound
that is a reactant in cellular respiration ? a) | Letter A | c) | Letter C | b) | Letter B | d) | Letter D | | | | |
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33)
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Study the
graphicsbelow.
Which organism in the graphic below can best be described as a herbivore
?
a) | bird | c) | bull | b) | pig | d) | chicken | | | | |
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34)
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A certain food chain consists
of the following organisms: grain, rats, snakes, hawks. Which of the organisms in the
chain are MOST acurately classified as tertiary consumers? a) | grain | c) | snakes | b) | rats | d) | hawks | | | | |
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35)
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Examine
the food pyramid depicted below.
Based upon the food pyramid depicted, which of the following would be
a correct statement:
a) | Grain is heterotrophic. | b) | The snake has less energy available than the hawk. | c) | The hawk a herbivore. | d) | The hawk is a quarternary
consumer. | e) | The snake has less energy available than the
mouse. | | |
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36)
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An organism that can obtain
energy from inorganic sources is BEST classified as a/an: a) | autotroph | b) | heterotroph | c) | decomposer | | |
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37)
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An organism that obtains its
energy from the consumption of organic sources can be BEST classified as: a) | autotroph | b) | heterotroph | c) | decomposer | | |
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38)
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An organism that obtains its
energy from breaking down other organisms is BEST classified as: a) | autotroph | b) | heterotroph | c) | decomposer | | |
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39)
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Which of the following terms
describes the process by which cells obtain energy? a) | transpiration | b) | respiration | | |
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40)
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When ocean water evaporates, it
rises and cools. When it condenses in clouds, it forms: a) | salt water | b) | fresh water | c) | brackish water | | |
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