This mechanism shows the conversion of ozone to oxygen in the upper atmosphere. what is the overall reaction from the mechanism? step 1: cl + o3 → clo + o2 step 2: o + clo → cl + o2 a. o3 + cl → o2 + clo b. o3 + clo → 2o2 + cl c. 2o3 → 3o2 d. 3o2 → 2o2

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.