Which Susbstance is probably an unstable intermediate?

a)CO
b)NO2
c)NO3
d)NO
Can anyone explain to me why is it NO3? is it because it requires an extra mechanism?

Question

Which Susbstance is probably an unstable intermediate?

a)CO
b)NO2
c)NO3
d)NO
Can anyone explain to me why is it NO3? is it because it requires an extra mechanism?

abb0t · Answer

Are you SURE the answer is NO$_3$?

abb0t · Answer

Also, are you using this to describe a reaction mechanism?

abb0t · Answer

Is there more information?

anonymous · Answer

Oh ya sorry they linked it back to the question on previous page
Equation: NO2+CO>NO+CO2

NO2+NO2>NO3+NO (fast)
NO3+CO>NO2+CO2 (slow)

thats the mechanism 

also why is the rate law r=[NO2]^2[CO]? is it because 2 NO is required to make NO2>CO2?

abb0t · Answer

This is a two step reaction. Which means that the first step is slow.