Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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A
physical property of zinc metal is _____. a. | its color | b. | whether it
burns | c. | how it reacts with nitrogen gas | d. | whether it
changes when placed into acid | | |
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2.
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An
example of a chemical change is _____. a. | melting | c. | burning | b. | electrical
conductivity | d. | density | | | | |
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3.
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When
ice melts and becomes liquid water, it has undergone a _____. a. | chemical
change | c. | physical
change | b. | chemical property | d. | physical property | | | | |
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4.
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Gold
melts at 1064ºC. Melting point is a _____. a. | chemical change | c. | physical change | b. | chemical
property | d. | physical
property | | | | |
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Choose the
item that is an example of the term.
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5.
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compound
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6.
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homogeneous
mixture
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7.
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element
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8.
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Matter in which atoms are tightly held in place is a ____. a. | gas | c. | plasma | b. | liquid | d. | solid | | | | |
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9.
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Matter in which the particles are free to move in all directions until they have
spread evenly throughout their container is a ____. a. | gas | c. | plasma | b. | liquid | d. | solid | | | | |
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10.
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As a
sample of matter is heated, its particles ____. a. | are unaffected | c. | move more slowly | b. | move more
quickly | d. | stop
moving | | | | |
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11.
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How
would you separate a mixture of sand and water? a. | filtration | c. | chromatography | b. | distillation | d. | crystallization | | | | |
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12.
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What
technique would you use to separate a homogeneous mixture of two liquids? a. | filtration | c. | chromatography | b. | distillation | d. | crystallization | | | | |
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13.
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A
24.0g sample of carbon combined with 64.0 g of oxygen to make CO2. This is an example of
what law? a. | Law of Definite
Proportions | c. | Law of
Conservation of Mass | b. | Law of Multiple Proportions | d. | Law of Conservation of Energy | | | | |
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14.
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A 58.33g sample
of milk of magnesia, Mg(OH)2 always contains 24.31g of
magnesium,
32.00g of
oxygen, and 2.02g of hydrogen. Find the mass percent of magnesium in milk of
magnesia.
a. | 3.46% | c. | 54.86% | b. | 100.0% | d. | 41.68% | | | | |
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15.
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The
fact that iron and oxygen make at least three compounds – FeO, Fe2O3, and
Fe3O4 – best illustrates a. | Law of
conservation of mass | c. | Law of multiple
proportions | b. | Law of definite proportions | d. | Law of conservation of energy | | | | |
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Matching
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Match the
terms below with their correct definitions. a. | law of multiple proportions | g. | crystallization | b. | percent by
mass | h. | chromatography | c. | periodic table | i. | states of matter | d. | law of conservation of
mass | j. | solid | e. | law of definite proportions | k. | liquid | f. | solution | | | | |
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16.
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States that
mass is neither created nor destroyed in a chemical reaction
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17.
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States that
regardless of the amount, a compound is always composed of the same elements in the same proportion
by mass
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18.
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States that
different masses of one element combine with the same relative mass of another element to form
different compounds
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19.
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The grid
organizing elements into periods and groups
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20.
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The ratio of
the mass of each element to the total mass of the compound
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21.
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Three
physical forms that describe all matter that exists on Earth
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22.
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A separation
technique that results in the formation of pure solid particles from a solution
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23.
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A technique
that separates the components of a mixture
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24.
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A form of
matter with a constant volume that takes the shape of its container
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25.
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A form of
matter with a definite shape and volume
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Identify
each property as either physical or chemical. Tell whether each physical property is extensive
or intensive. a. | physical,
intensive | c. | chemical | b. | physical, extensive | | | | |
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26.
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color
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27.
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tendency to
rust
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28.
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boiling
point
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29.
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density
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30.
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mass
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31.
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ability to
burn
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32.
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malleability
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33.
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ability to
conduct electricity
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Match the
terms below with their correct definitions. a. | gold | c. | steam | b. | methane | d. | sterling silver (silver and copper) | | | | |
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34.
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alloy
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35.
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element
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36.
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gas
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37.
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vapor
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Identify
each change as either physical or chemical.
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38.
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breaking a
pencil in half
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39.
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wood
burning
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40.
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silver
tarnishing
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41.
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ice
melting
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42.
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grinding
coffee beans
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43.
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burning
gasoline
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Identify
each mixture as either homogeneous or heterogeneous. a. | homogeneous | b. | heterogeneous. | | | | |
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44.
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air
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45.
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blood
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46.
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oil and
water
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47.
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wild bird
seed
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48.
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chunky
peanut butter
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49.
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dirt
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50.
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gasoline
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