Question

H2S + O2 ---> SO2 + H2O

Answer 1

ОВР: 2H2S+3O2--->2SO2+2H2O
               -2            +4
в-тель S  - 6e-->S      окисление                   12:6= 2
о-тель O₂⁰+4e-->2O   восстановление         12:4=3

Answer 2

The balanced chemical equation for the reaction between hydrogen sulfide (H2S) and oxygen (O2) to form sulfur dioxide (SO2) and water (H2O) is as follows:

2 H2S + 3 O2 → 2 SO2 + 2 H2O

In this equation, two molecules of hydrogen sulfide react with three molecules of oxygen to produce two molecules of sulfur dioxide and two molecules of water. The equation is balanced in terms of both mass and charge, with equal numbers of each type of atom on both sides of the equation.