For 10 points, identify this molecule composed of three oxygen atoms, which is found in a namesake layer in the stratosphere.
A heterocyclic intermediate formed from a reaction of this non-organic compound is often reductively worked up with either zinc metal or dimethyl sulfide to form two carbonyls. Criegee's namesake intermediate is often produced in that reaction named for this molecule, in which it cleaves alkenes or alkynes to produce a double bond with oxygen. The Chapman cycle describes the breakdown and formation of this compound. CFCs have caused depletion of this compound, which is formed when UV light photolyzes the second-most common molecule in the atmosphere. For 10 points, identify this molecule composed of three oxygen atoms, which is found in a namesake layer in the stratosphere.
A heterocyclic intermediate formed from a reaction of this non-organic compound is often reductively worked up with either zinc metal or dimethyl sulfide to form two carbonyls.
ozone [accept O3]