Question

H2S + SO2 -----> S + H2O​

BALANCE THE EQUATION :

Answer 1

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BALANCE EQUATION

H2S + SO2 -----> H2O+ S

(Hydrogen sulfide + Sulfur dioxide)

In Following equation :-

In Reactant side ↪

H = 2

S = 3

O = 2

In Product Side ↪

H =2

O = 1

S= 1

Therefore :-

SO2 + H2S -----> S + 2H2O

⇒ On the LHS the number of molecules of H2S should be twice the number of molecules of SO2.

So, as an intermediate step, we tentatively put SO2+2H2S=S+H2O.

↪We should have two molecules of water on the RHS.

So, we modify the equation to

▶SO2+2H2S=S+2H2O

Now there are three sulphur atoms on the LHS.

⇒ There should be three sulphur atoms on the RHS also.

So we get the balanced equation

↪SO2+2H2S=3S+2H2O.