Valid resonance structures can be obtained by first drawing a valid lewis structure and then shifting π bonds (double and triple bonds) and lone pairs to create other valid lewis structures. resonance structures should preserve sigma bonds, the total net charge of the molecule, and the total number of electrons of the original lewis structure. a good resonance contributor generally has all octets satisfied and has as little charge separation as possible. which are possible resonance contributors for the cyanate ion?

How do cfcs cause ozone depletion? how do cfcs cause ozone depletion? ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation breaks down cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks two oxygen atoms away from ozone, leaving behind a paired oxygen molecule. ultraviolet radiation creates cfcs, molecules containing chlorine. chlorine then breaks one oxygen atom away from ozone, leaving behind a paired oxygen molecule.