Question

balance- PbS+O2->PbO+SO2​

Answer 1

Answer:

2PbS + 3O2 => 2PbO + 2SO2

Explanation:

PbS + O2 => PbO +SO2

LHS                            RHS                          

Pb = 1            |      Pb = 1

S = 1              |      S = 1

O = 2             |      O = 1 + 2 =  3

Now to balance the eq,

LHS                            RHS                          

Pb = 1  x 2 = 2        |      Pb = 1 x 2 = 2

S = 1  x 2 = 2           |     S = 1 x 2

O = 2 x 3 = 6          |     O =  1 x 2 + 2 x 2 = 6

.: Eq obtained is = 2PbS + 3O2 => 2PbO + 2SO2

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