Question

SO2+H2S gives S+H2O balance this equation stepwise

Answer 1

SO2+H2S=S+H2O
So number H2S molecule should be same as number H2O molecule
Number of S molecule will be sum of number of SO2 and H2S molecule which means we get
XSO2+YH2S=(X+Y)S+YH20
now lets count number of O atoms which will be
2X=Y
Substitue Y as 2X in equation which we get
XSO2+2XH2S=3XS+2XH20
cancelling x we get
SO2+2H2S=3S+2H2O