The decomposition of nitrogen dioxide is described by the following chemical equation:
2NO_2 (g) > 2NO (g) + O_2 (g)
Suppose a two-step mechanism is proposed for this reaction, beginning with this elementary reaction:
NO_2 (g) > NO_(g) + O_(g)
Suppose also that the second step of the mechanism should be bimolecular.
a) Suggest a reasonable second step. That is, write the balanced chemical equation of a bimolecular elementary reaction that would complete the proposed mechanism.

The balanced chemical equation will be "".

Explanation:

The given equation is:

Step 1:

...(equation 1)

Step 2:

...(equation 2)

On adding "equation 1" and "equation 2", we get

⇒  

⇒  

The second step:

⇒  

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