Anybody know how to separate something stuck together with A2000 glue

I wasn't able to nail down what kind of glue A2000 is. Is it a cyano-acrylate type glue? Or is it a construction adhesive? It is very important to know what that "something" is.

Okay, I think we might be talking about cyano-acrylate, something like Super Glue. Good try but I see that once E6000 is cured it is solvent resistant so I don't wonder that acetone or WD-40 did not do the job.

It is great stuff that has only one Achilles Heel. Shear. So, if you can use a stick of wood from the side and gently tap with a rubber hammer, creating a shear force, it will cause the glue to fracture, hopefully not breaking the glass.

I think that thiss will help! https://lifehacker.com/5436362/how-to-remove-super-glue-from-practically-anything