Balance
Hydrogen sulphide + Oxygen = Water + Sulphur dioxide
By shortcut method as given in the video lecture.
The chemical formula for “hydrogen sulfide oxygen” cannot be “determined” because no such compound exists. Hydrogen sulphide (H2S) and oxygen (O2) are two completely separate chemical compounds.
If you really meant; “What is the chemical reaction between hydrogen sulfide and oxygen?” then that’s what you should have asked! Please don’t confuse chemical formula with chemical reaction.
So, to answer the question you should have asked….
Hydrogen sulphide reacts with oxygen to produce water and sulphur dioxide, in accordance with the balanced equation;-
2 H2S + 3 O2 → 2 H2O + 2 SO2
The reaction is exothermic, so quite a lot of heat is generated.
NOTE: Hydrogen sulphide is very toxic so please don’t prepare it at home. Its toxicity is comparable to carbon monoxide. (Only 5mins exposure to 800ppm H2S in air is a lethal concentration for 50% of humans.)