#that1geek

If by “alchemy” you mean the historic practice of attempting to turn iron or lead into gold and similar things that would cheat science, not at all. Witchcraft doesn’t seek to do the physically impossible, but instead to sway things towards a particular intent or outcome.

I hope this helps!

~Mod T

If your character is interested in the classical sense of alchemy they may, as Mod T mentioned, want to study up on the primary and secondary historical sources. Here is a link to a website that has both...

http://users.clas.ufl.edu/ufhatch/pages/03-Sci-Rev/SCI-REV-Home/sr-research/eebo-alchemy.htm

It is dense and varied so make sure to bring snacks and a bottle of water with you if you want to explore them.

If you want a more modern exploration of “alchemy” I’d suggest your character be more science witch or tech witch aimed and that they’re in a field that allows them to experiment manipulating matter. Physics, biology, chemistry, and the like all have avenues in which your witch can flex their matter manipulative abilities.