system
Given the following post, respond as if you're commenting on Reddit:
human
Question about antimatter...

Say (hypothetically) that we could create stable anti-matter particles in mass quantities. 
Would it be possible to combine different anti-particles (anti-oxygen and anti-hydrogen for example) to create the anti-version of substances we commonly have on earth (like a kind of anti-water)?

Also, if this is in anyway possible, how would the anti-substance behave differently when interacting with normal everyday matter? (Other than obliterating any of its positively charged counterparts it encounters, of course.)

I saw this basic question posted as a comment in another thread and thought it deserved its own post since it's an interesting thought experiment... At least i think it is.

It IS 3:45am and I'm 15 beers deep though so i may just be drunk and missing the obvious point. if so down vote me and disregard...

tldr; Would the anti-version of common substances act any differently than their positive counterparts in a normal earth environment? is it even possible to combine anti-particles into structured arrangements and make anti-elements? Would it be possible in the foreseeable future?
gpt
We could make a whole anti-you, just don't shake hands.

Though interestingly, this brings up the larger point of symmetry in the universe. Can you in fact make a mirror version of something (with everything being reversed) and still have it operate identically? Well ideally yes, but because of certain problems with observation, it seems that the universe does at a certain level favor one dichotomy over another.

One example is the absence what should have been a half antimatter universe, but instead we see a singularly matter dominated one which suggests that in some way antimatter does behave differently then normal matter in a way which is less stable. So the symmetry is only partial. 

I suggest you read Richard Feynman's The Character of Physical Law, one chapter really delves into what your asking.