system
Given the following post, respond as if you're commenting on Reddit:
human
Could plasma (state of matter, not blood plasma) be a solvent?

So, I'm a chemistry major in college, and last week I was randomly thinking about more abnormal solutions (normal being liquid-liquid or solid-liquid), when I came up with this question, which managed to stump my professor. Now, we all know gases can dissolve gases, but what if you made that gas into plasma? I imagine another plasma could dissolve into it, right? But could you possibly or even plausibly dissolve a gas into a plasma without the solute gas converting to plasma?
gpt
Plasmas are unstable in general, and adding a neutral gas to them threatens to cool it down to a point of recombination, and the ions and electrons would recombine into regular atoms and molecules

If you maintain the plasma while adding a neutral gas, the plasma would ionize the gas and you would have new ion species in your plasma. 

The sun is a giant ball of plasma that is very stable (it isn't going to just turn into gas anytime soon). Anything you want will definitely dissolve in the sun, but molecules will be broken into their constituent atoms and those into ions. For example, if you wanted to dissolve ethelenol in a plasma you would most likely end up with carbon ions and hydrogen ions and oxygen ions. 

TL;DR plasma will dissolve stuff, but the stuff doesn't always remain very stuff-y.