The two best descriptions of the term "invert" as it is used in stoichiometry problems are:
- Inverting means to "flip" instead of g/mol you'll have mole/grams as your units.
- Inverting is like "using the reciprocal" for a fraction.
These options correctly describe the mathematical operation of taking the reciprocal of a value, which is essential when converting between moles and grams in stoichiometric calculations.