Question

Which formula equation represents the burning of sulfur to produce sulfur dioxide?
Upper S (s) plus upper O subscript 2 (g) right arrow with delta above upper S upper O subscript 2 (g).
2 upper H subscript 2 upper s (s) plus 3 upper 0 subscript 2 (g) right arrow 2 upper H subscript 2 upper O (l) plus 2 upper S upper 0 subscript 2 (g).
4 upper F e upper S subscript 2 plus 11 upper O subscript 2 right arrow 2 upper F e subscript 2 upper O subscript 3 plus 8 upper S upper O subscript 2.
2 upper S upper O subscript 2 (g) plus upper O subscript 2 (g) right arrow with upper V subscript 2 upper O subscript 5 above arrow 2 upper S upper O subscript 3 (g).

Answer 1

The first equation:

S(s) + O2(g) →Δ SO2(g)

This directly shows elemental sulfur burning in oxygen to form sulfur dioxide. (The others show combustion of H2S, roasting of FeS2, and catalytic oxidation of SO2 to SO3.)