Consider the following mechanism for the reaction between nitric oxide and ozone:
1. O3 (g) + NO (g) > O (g) + NO3 (g)
2. O (g) + O3 (g) > 2O2 (g)
3. NO3 (g) + NO (g) > 2NO2 (g)
A. Write the chemical equation of the overall reaction.
B. Are there any intermediates in this mechanism.
C. If there are intermediates, write down their chemical formulas.

A .  2 O₃(g) + 2 NO   ⇒  2 O₂ (g) + 2 NO₂(g)

B . Yes

C.   O and NO₃

Explanation:

A. The overall reaction is obtained by adding the individual steps in the reaction mechanism where we will get the reactants and product and the intermediates will cancel.

Thus, adding 1+ 2 +3 we get

2 O₃(g) + 2 NO   ⇒  2 O₂ (g) + 2 NO₂(g)

B. The reaction intermediates are those that are produced from the initial and/or subsequent steps and are consumed later on in the reaction mechanism, but  are neither reactants nor products, they just participate.

From this definition it follows that O(g) and NO₃ are reaction intermediates.

C. O and NO₃

the answer is c) gamma rays

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