1. For the reaction CO(g) + NO2(g) → CO(g) + NO(g), a CO, concentration of 0.040 moles/liter was measures at 2 seconds. What was the average reaction rate
for this reaction? (Please note that at t = 0, no CO, was present.)

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together