Question

Find the values of a, b and c to balance the following equation
aFe + bH2O → Fe3O4+ cH2
(a) a= 2, b = 3, c =3
(b) a= 3, b = 4, c =4
(c) a= 3, b = 3, c =3
(d) a= 2, b = 3, c =3

Answer 1

Explanation:

The correct answer is option (b)

Since from product side, we can infer the number of Fe atoms, so a=3.

Also in product side, total no. of O atoms=4,

so we need to adjust the "bH2O" such that O atoms become 4

Therefore, b=4

And when b=4, no. of H atoms become (4×2)=8, so cH2=4H2

i.e, c=4

Hope it helps!

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