Consider the following balanced final equation. no2 + co mc014-1.jpg no + co2 which is the correct step(s) for this reaction mechanism?

The overall reaction provided is as follows:

NO₂ + CO → NO + CO₂

The reaction proceeds under the following two step mechanism:

Step 1: NO₂ + NO₂ → NO + NO₃ (slow)

Two molecules of nitrogen dioxide react to form NO and NO₃ which is the slow step in the mechanism. The NO₃ that is formed goes on to react with the carbon monoxide that leads to the formation of NO₂ and CO₂ and this is the fast step in the mechanism.

Step 2: NO₃ + CO → NO₂ + CO₂ (fast)

Now we combine both reactions to get the overall reaction:

NO₂ + NO₂ → NO + NO₃
NO₃ + CO → NO₂ + CO₂
NO₂ + CO → NO + CO₂

The overall reaction agrees with the reaction provided in the question.

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)

Most smaller stars don't have a radiative zone.