chemo-, chem-, chemico-, chemi-, -chemist, -chemic, -chemical +

(Arabic > Greek > Latin: the art of combining base metals [to make gold]; from Greek, chemia, “Egypt”, supposedly where the art of changing metals into gold existed)

thermochemist
One who specializes in the use of chemical action and heat.
thermochemistry, thermochemical
1. The interrelation of chemical action and heat.
2. The aspect of physical chemistry dealing with heat changes that accompany chemical reactions and changes of state.
3. The study of chemical changes and energies as they are affected by heat.
4. The use of chemicals in treating or preventing disease; based on their effect on the causative agent.
5. A branch of chemistry studying the heat changes that accompany chemical reactions and changes of state.
zymochemistry (s) (noun), zymochemistries (pl)
The scientific study of fermentation.

Pointing to a page about a chemical elements A Chemical-Elements Chart History, Part 1, is available here.

Pointing to a page about chemical elements See this list of chemical elements, for a greater understanding.