Which of the following are second-order reactions? a. c2h6 → 2 ch3 b. 2 n2o5 → 4 no2 + o2 c. 2 hi → h2 + i2 d. 2 n2o → 2 n2 + o2 e.2 no2 → 2 no + o2

The answer is b, c, d, e

Explanation:

b. 2 N2O5 → 4 NO2 + O2

r = k [N2O5]^2 --> Second-order regarding global reaction

c. 2 HI → H2 + I2

r = k [HI]^2 --> Second-order regarding global reaction

d. 2 N2O → 2 N2 + O2

r = k [N2O]^2 --> Second-order regarding global reaction

e. 2 NO2 → 2 NO + O2

r = k [NO2]^2 --> Second-order regarding global reaction

it should be all of them because it asks if you included all of those in your answer

explanation:

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.