True/False
Indicate whether the
statement is true or false.
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1.
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In a chemical reaction, the
products are found on the left side of the arrow.
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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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2.
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Which observation does NOT
indicate that a chemical reaction has occurred?
a. | formation of a
precipitate | c. | evolution of heat
and light | b. | production of a gas | d. | change in total mass of
substances |
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3.
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Which word equation represents
the reaction that produces water from hydrogen and oxygen?
a. | Water is produced from hydrogen and
oxygen. | b. | Hydrogen plus oxygen yields water. | c. | H2 + O2 → water. | d. | Water can be separated into hydrogen and
oxygen. |
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4.
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In what kind of reaction do two
or more substances combine to form a new compound?
a. | decomposition
reaction | c. | double-replacement
reaction | b. | ionic reaction | d. | synthesis reaction |
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5.
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The equation AX → A + X is the general equation for
a
a. | synthesis
reaction. | c. | combustion
reaction. | b. | decomposition reaction. | d. | single-replacement reaction. |
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6.
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The equation AX + BY
→ AY + BX is the general equation for
a
a. | synthesis
reaction. | c. | single-replacement
reaction. | b. | decomposition reaction. | d. | double-replacement reaction. |
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7.
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The equation A + X → AX is the general equation for
a(n)
a. | combustion
reaction. | c. | synthesis
reaction. | b. | ionic reaction. | d. | double-replacement reaction. |
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8.
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In what kind of reaction does a
single compound produce two or more simpler substances?
a. | decomposition
reaction | c. | single-replacement
reaction | b. | synthesis reaction | d. | ionic reaction |
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9.
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The equation A + BX
→ AX + B is the general equation for
a
a. | double-replacement
reaction. | c. | single-replacement
reaction. | b. | decomposition reaction. | d. | combustion reaction. |
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10.
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The reaction 2HgO(s)
→ 2Hg(l) + O2(g)
is a(n)
a. | single-replacement
reaction. | c. | ionic
reaction. | b. | synthesis reaction. | d. | decomposition reaction. |
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11.
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The reaction
2KClO3(s) →
2KCl(s) + 3O2(g) is a(n)
a. | synthesis
reaction. | c. | combustion
reaction. | b. | decomposition reaction. | d. | ionic reaction. |
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12.
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In the equation 2Al(s) +
3Fe(NO3)2(aq) → 3Fe(s) + 2Al(NO3)3(aq), iron has been replaced
by
a. | nitrate. | c. | aluminum. | b. | water. | d. | nitrogen. |
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13.
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Which type of chemical reaction
is shown?
a. | double
replacement | c. | synthesis | b. | combustion | d. | decomposition |
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14.
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Which type of reaction takes
place in the presence of oxygen and produces carbon dioxide and water?
a. | decomposition | c. | synthesis | b. | double replacement | d. | combustion |
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15.
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Which type of reaction is
Al + O2 →
Al2O3?
a. | synthesis | c. | single replacement | b. | decomposition | d. | combustion |
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16.
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Which types of reactions are
essentially opposites of one another?
a. | combustion and
synthesis | b. | single replacement and double replacement | c. | synthesis and single
replacement | d. | synthesis and decomposition |
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17.
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Which type of chemical reaction
would this be classified as:
C3H8
+ O2 → CO2 + H2O
a. | synthesis | c. | combustion | b. | double replacement | d. | decomposition |
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18.
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Identify the type of reaction
shown by this chemical equation:
Al + HCl
→ AlCl3 + H2
a. | single
replacement | c. | double
replacement | b. | synthesis | d. | decomposition |
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19.
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Which type of chemical reaction
is this an example of?
Fe2(SO4)3 + KOH → K2SO4 +
Fe(OH)3
a. | synthesis | c. | single replacement | b. | double replacement | d. | combustion |
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20.
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Identify the type of chemical
reaction demonstrated by this equation:
KClO3
→
KCl + O2
a. | decomposition | c. | combustion | b. | synthesis | d. | single replacement |
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