Chemistrymedium · Past Paper
In the balanced equation $xFe + yH_2O \rightarrow Fe_3O_4 + zH_2$, what are the values of x, y, and z?
Ax=1, y=2, z=2
Bx=3, y=4, z=4
Cx=3, y=2, z=2
Dx=2, y=3, z=3
✓ Correct Answer: B — x=3, y=4, z=4
To balance the equation: 3Fe atoms, 8 Hydrogen atoms (4x2), and 4 Oxygen atoms are needed on both sides.
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