N=S+S A-nt+
-an+?
What does it mean

n = Number of Moles

S is the symbol for Sulfur

t is usually temperature

+ and - are the charges of molecules

If they're next to each other, it means it's multiplication, or combined elements (molecules)

Yet both compounds and elements are considered pure substances. Pure compounds are created when elements combine permanently, forming one substance. For example, when the elements mercury and oxygen combine, and a chemical reaction takes place, mercury (II) oxide is created.

Hope this helps!