Molecular oxygen is composed of two oxygen atoms that share four ...

[schs14]

Molecular oxygen is composed of two oxygen atoms that share four electrons. How many covalent bonds exist between the two oxygen atoms?
 
  a. none
  b. one
  c. two
  d. four
  e. eight

Question 2

The greenhouse effect produces excess heat in a planet's atmosphere by
 
  a. trapping infrared radiation from escaping into space.
  b. clouds blocking the surface from receiving any infrared radiation.
  c. preventing light gases from escaping into space.
  d. trapping ultraviolet light in the upper atmosphere of the planet.

[BUTTHOL369]

Answer to Question 1

c

Answer to Question 2

a

[schs14]

Thanks for the timely response, appreciate it

[abro1885]

Excellent