Introduced to this concept in AP Chemistry
What is it?
The change in enthalpy when one mole of a compound is formed from its elements in their standard states is called “enthalpy of formation”
Forming a compound from it’s individual elements
C(s) + 2S (s) -> CS (l)
This would be an example of enthalpy of formation
Enthalpy of formation for any element in its standard state is zero
Standard Enthalpies of Formation
Only the formula of the product is included if you need a balanced chemical equation you’re going to have to generate it yourself