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Dinitrogen monoxide (AKA nitrous oxide) reacts with oxygen gas according to the unbalanced equation:

$${ \_ \_ N }_{ 2 }O(g)+{ \_ \_ \_ O }_{ 2 }(g)\rightarrow { \_ \_ \_ NO }_{ 2 }(g)$$

Given the following legend and the reaction mixture shown below, answer the question that follows.

Created for Albert.io. Copyright 2016. All rights reserved.

Created for Albert.io. Copyright 2016. All rights reserved.

If the reaction mixture is ignited by a spark, and assuming that it goes to completion, which of the following statements describes the final composition of the system?

A

Eight molecules of nitrogen dioxide are produced. Two molecules of each reactant remain.

B

Eight molecules of nitrogen dioxide are produced. Oxygen gas is the limiting reactant and is totally consumed.

C

Eight molecules of nitrogen dioxide are produced. Nitrous oxide is the limiting reactant and is totally consumed.

D

Twelve molecules of nitrogen dioxide are produced. Nitrous oxide is the limiting reactant and is totally consumed.

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