Question

Dinitrogen monoxide (AKA nitrous oxide) reacts with oxygen gas according to the unbalanced equation
$N_{2}O\left(g\right)+$ $O_2\left(g\right)\to$ $N{O}_2\left(g\right)$
Given the following legend and the reaction mixture shown below, answer the question that follows.
If the reaction mixture is ignited by a spark, and assuming that it goes to completion, which of the statements below describes the final composition of the system?

• A. $8$ molecules of nitrogen dioxide are produced. Two molecules of each reactant remain.
• B. $8$ molecules of nitrogen dioxide are produced. Oxygen gas is the limiting reactant and is totally consumed.
• C. $8$ molecules of nitrogen dioxide are produced. Nitrous oxide is the limiting reactant and is totally consumed.
• D. $12$ molecules of nitrogen dioxide are produced. Nitrous oxide is the limiting reactant and is totally consumed.

Answer 1

Answer: (A)

$8$ molecules of nitrogen dioxide are produced. Two molecules of each reactant remain.

$8$ molecules of nitrogen dioxide are produced. Two molecules of each reactant remain.

4$N_{2}O\left(g\right)+$ 6 $O_2\left(g\right)\to$ 8$N{O}_2\left(g\right)$