Multiple Choice Identify the
choice that best completes the statement or answers the question.
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1.
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Which numbers balance the equation: ___
Fe2(SO4)3
+ ___ KOH ---> ___ K2SO4
+ ____ Fe(OH)3
a. | 2, 12, 3, 4 | c. | 1, 6, 3, 4 | b. | 1, 6, 3, 2 | d. | 1, 3, 1, 1 |
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2.
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Which numbers balance the equation: ___Ca10F2(PO4)6 +___ H2SO4 ---> ___ Ca(H2PO4)2 +
___ CaSO4 + ___
HF
a. | 1, 7, 3, 7, 2 | c. | 2, 14, 6, 14, 2 | b. | 1, 7, 3, 7, 1 | d. | 1, 7, 2, 7, 2 |
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3.
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Which numbers balance the equation: ___
FeS2 + ___ O2 ---> ___ Fe2O3
+ ___ SO2
a. | 2, 2, 1, 2 | c. | 4, 10, 2, 8 | b. | 4, 11, 2, 8 | d. | 2, 5, 1, 4 |
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4.
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Which numbers balance the equation: ___Fe2O3 +
___ C ---> ___ CO + ___ Fe
a. | 1, 6, 3, 2 | c. | 2, 3, 3, 2 | b. | 1, 3, 3, 2 | d. | 2, 6, 6, 1 |
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5.
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Which numbers balance the equation: ___
Al(OH)3 + ___ H2SO4
---> ___Al2(SO4)3 +
___ H2O
a. | 2, 6, 2, 12 | c. | 4, 6, 2, 6 | b. | 2, 1, 1, 1 | d. | 2, 3, 1, 6 |
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6.
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Which numbers balance the equation: __ Si +
___S8 ---> ___
Si2S4
a. | 4, 1, 4 | c. | 8, 2, 2 | b. | 2, 1, 1 | d. | 4, 1, 2 |
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7.
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Which numbers balance the equation: __
MgNH4PO4 ---> __Mg2P2O7
+ __ NH3 + __ H2O
a. | 1, 2, 1, 2 | c. | 2, 1, 2, 1 | b. | 2, 1, 4, 1 | d. | 4, 2, 4, 1 |
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8.
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Which numbers balance the equation: ___
C7H6O2
+ ___ O2 ---> ___ CO2 + ___ H2O
a. | 2, 7, 14, 6 | c. | 1, 7, 7, 1 | b. | 1, 7, 7, 3 | d. | 2, 15, 14, 6 |
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9.
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Which numbers balance the equation: ___ As +
___ NaOH ---> ___ Na3AsO3 +
___ H2
a. | 2, 3, 1, 3 | c. | 2, 6, 2, 3 | b. | 2, 6, 4, 3 | d. | 1, 2, 1, 3 |
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10.
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Which numbers balance the equation: __
Ca3(PO4)2
+ __ SiO2 ---> __ P4O10 +
__ CaSiO3
a. | 2, 6, 1, 6 | c. | 4, 6, 2, 6 | b. | 2, 3, 1, 3 | d. | 1, 3, 1, 3 |
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