Final answer:
NaCl and H2O are the two formulas that represent compounds.
Step-by-step explanation:
The two formulas that represent compounds are:
A) NaCl: Sodium chloride - a compound made up of sodium cations (Na+) and chloride anions (Cl-).
D) H2O: Water - a compound made up of two hydrogen atoms (H) bonded to one oxygen atom (O).