What is the name of the binary compound that has the formula k2s?

a. dipotassium monosulfide

b. potassium (ii) sulfate

c. potassium sulfide

d. potassium sulfite?

Potassium sulfide, also known as dipotassium monosulfide, consists of two potassium ions bonded to a sulfide atom, rendering the chemical formula K2S. Rarely found in nature due to its high reactivity with water, potassium sulfide is refined from the more common potassium sulfate (K2SO4) and is used in many industries