(E) ionic aluminum fluoride (AlF3)
Cmasdfghjkl;^2 I think
Lol hoped this helped
Copper choruses purpose is its used as a catalyst for organic and inorganic reactions , mordant for dyeing and printing textiles, pigment for glass and ceramics, wood preservative, disinfectant, insecticide, fungicide, and herbicide. (Not sure if you want the actual purpose of water or not)
Because they don't care and think the ozone layer is fine.