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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In an
exothermic reaction, energy is transferred from a. | the reactants to the
surroundings. | c. | one reactant to
another. | b. | the surroundings to the
reactants. | d. | the container to
the chemicals. | | | | |
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Completion
Complete each sentence or
statement.
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2.
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hydrogen combines with oxygen to produce water
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3.
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zinc
(II) combines with hydrogen chloride to form zinc chloride and hydrogen gas
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4.
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iorn
combines with oxygen gas to form iron (III) oxide
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5.
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dihydrogen dioxide forms water and oxygen gas
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6.
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tetraphosporus decaoxide combines with water to produce hydrogen
phosphate
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7.
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iron
combines with water to form iron (IV) oxide and hydrogen gas
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8.
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nitrogen gas combines with hydrogen gas to form nitrogen trihydride
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9.
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nitrogen gas combines with oxygen gas to form dinitrogen monoxide
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10.
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aluminum hydroxide combines with hydrogen sulfate to form aluminu sulfate and
water
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11.
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sodium carbonate combines with hydrogen chlorid to form sodium chloride, water and
carbon dioxide
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12.
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aluminum combines with iron(II) to form aluminum oxide and iron
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13.
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aluminum combines with oxygen gas to form aluminum oxide
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14.
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aluminum sulfate combines with calcium hydroxide to form aluminum hydroxide and
calcium sulfate
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15.
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aluminum combines with hydrogen chloride to form aluminum chloride and hydrogen
gas
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16.
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magnesium combines with nitrogen gas to form magnesium nitride
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17.
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dinitrogen pentoxide combines with water to form hydrogen nitrate
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18.
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potassium oxide combines with water to form potassium hydroxide
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19.
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sodium carbonate combines with hydrogen chloride to form sodium chloride , water and
carbon dioxide
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