17.3g
S8 + 8 O2 → 8 SO2 burning sulfur in the presence of oxygen
Sulfur can have a wide range of oxidation in its compounds -2 in H2S 0 in elementary sulfur (S8) +4 in SO2 +6 in SO3
Both a sulfur molecule (S8) and a sulfur dioxide molecule (SO2) contain the element sulfur. Beyond that they are very different.
The chemical symbol of sulfur in equations is S. However, the real chemical formula is S8, so basically 8 atoms of sulfur react to become one molecule. S8 has a crown shape with three spikes on top and two spikes on the bottom. It is too much a bother to write S8 and balance it so we write S in equations.
Sulfur is generally S8. S8 + 8 O2 → 8 SO2
1/8 S8 + O2 --> SO2 , delta H degree f = -296.9 kJ
17.3g
8Ba + S8 -----> 8BaS
S8 + 8 O2 → 8 SO2 burning sulfur in the presence of oxygen
S8 + 8 O2 ---> 8 SO2 ^ ^ ^ small numbers
2h2s + so2 - 2h20 + 3s
2h2s + so2 ----------> 3s + 2h2o
The chemical equation is:2 SO2 + O2 = 2 SO3
Br2 + 2H2O + SO2 = H2SO4 + 2HBr
Sulfur can have a wide range of oxidation in its compounds -2 in H2S 0 in elementary sulfur (S8) +4 in SO2 +6 in SO3
The simplest reaction is: S + O2 = SO2