In the equation below, M is most likely ________. O + O2 + M O3 ...

[rlane42]

In the equation below, M is most likely ________. O + O2 + M  O3 + M
 
  A) Cl2
  B) N2
  C) Ne
  D) CO2
  E) H2O

Question 2

Arrange the following gases in order of increasing average molecular speed at 25 C. He, O2, CO2, N2
 
  A) He < N2 < O2 < CO2
  B) He < O2 < N2 < CO2
  C) CO2 < O2 < N2 < He
  D) CO2 < N2 < O2 < He
  E) CO2 < He < N2 < O2

[asware1]

Answer to Question 1

B

Answer to Question 2

C

[rlane42]

Wow, this really help

[emsimon14]

Great answer, keep it coming