Ah, I see what you mean.
I remember very little from HS chemistry except Hector’s (the chem teacher) huge yellow Pickett above the blackboard and his planed baseball bat that he used for giving the boys “licks”.
He loved to bend us over his desk and swing for the fences. It’s just what we had to deal with to get through chemistry.
The girls, on the other hand, were all his pets.
Carbon dioxide, 95% of Mar’s atmosphere, can also be reduced to elemental carbon and oxygen using UV lasers.....................