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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Given the
reaction: 2 C2H6 + 7
O2 --> 4 CO2 + 6 H2O
What quantity (in moles) of
CO2 is produced when 30.0 grams of C2H6 burns
completely?
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2.
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What mass of
oxygen is produced by the decomposition of 3.0 moles of water?
2 H2O --> 2 H2 +
O2 a. | 1.5 g | b. | 32 g | c. | 36
g | d. | 48 g | | | | | | | | |
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3.
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Given the
reaction: N2 + 3 H2 --> 2
NH3
If 14 grams of N2 are consumed in the reaction, what mass of H2
is consumed? a. | 6.0 g | b. | 2.0 g | c. | 3.0
g | d. | 4.0 g | | | | | | | | |
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4.
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Given the
reaction: N2 + 3 H2 --> 2
NH3
What mass of H2 is needed to produce exactly 1 mole of ammonia
(NH3)?
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5.
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Given the
reaction: 2 H2 + O2 --> 2
H2O
What mass of oxygen will combine with 3.0 grams of hydrogen to produce
water? a. | 1.5 g | b. | 0.37 g | c. | 6.0
g | d. | 24 g | | | | | | | | |
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