Well that's disturbing.
'Hydrogen', fine, the flammable vapour when metal is exposed to acid, that one she knows about. Acid is important in elemental studies, it's part of the definition of interactions of Fire and Water. Weird that it would be a fundamental type of matter, it's just a Fire-Air conjugate, but fine.
Sunstuff, stonestuff, emeraldstuff, borax, charcoal, natronbirth, sharpbirth, what the actual fuck is this list of elements. Is this maybe the translation Spell trying to shield her mind from eldritch blasphemies by producing nonsense? Possibly! The books didn't say it did that but they say a Spell is somewhat shaped by its vessel, admittedly not usually this helpfully!
"...That sounds extraordinary!" she settles on saying. "I know hydrogen, but most of those translate to vaguely intelligible words but not ones I'm familiar with. I don't know if that means someone somewhere who speaks Elvish knows them, or if Elvish used to have a word for them, or if the Spell is just making things up, they do do that. I thought the elements were Fire, Earth, Air and Water, there are Elemental Planes of those and alchemy usually relies on them. ...We can visit, if that would be helpful, they're strange and dangerous places to be but I bet the Professor would help. Maybe there's an Elemental Plane of Hydrogen somewhere. Oh! And the skull things are because some wizards believe Spells etch themselves on the inside of your skull, and that the soul mostly interacts with the body through ventricles of the brain, so maybe you can tell other interesting things about the soul from the insides of the skull, so you can try to perfect yourself spiritually and win at alchemy!"
All right yes deep breath time to discuss pitfalls.
"All right. Wizardry is physically dangerous. Spells can have nearly any effect you can imagine, so any given Spell is more likely to be something strange and dangerous than something you understand! Also, mortals aren't properly shaped for magic, it can take a toll on your mind and spirit. It's why even powerful wizards don't use as much magic as you might expect!"
Most of them, in fact, spend most of their time at dinner, napping, arguing and ignoring research proposals.
"Canonical Spells are usually safe on both counts as long as you know your limits, don't make any mistakes and don't try to use them in weird ways. Magical research is a tradeoff in a few ways between novelty and safety, and also between physical and spiritual safety. If you want to be really safe, we can stick to known uses. That would mean - without preparing new Spells, right now, - I could for example use Abjurations to protect you from, say, poisonous fumes, or Transmutation to control things like flavour and temperature and colour, or move things without touching them, or Conjuration to teleport things, if any of that is helpful. Also this should have occurred to me, I can turn you into a different humanoid form if you give me some time with my spellbook and you still want to know how magic feels."