The Ferrous Wheel

[Anomalocaris]

What is the chemical symbol for Diarrhea?

I pass on the other two, but I think I might know an answer to this one.

Could it be arsacyclopentadiene:



or, to give it it's more common name, arsole?

If not, it bloody well should be.

That's a good one. I was thinking of the urea molecure CO(NH2)2, di-urea would be (CO(NH2)2)2.



Sea water is Formaldehyde, CH2O



Benezene is a ring of 6 carbon atoms each with a H atoms attached. Replace carbon with iron and you get a ferris wheel, albeit smaller than Rayaan's.