Slide to the correct value of y to balance the given equation.

$y F e (s) + 4 H_{2} O (g) \to F e_{3} O_{4} (s) + 4 H_{2} (g)$
3

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Solution

The correct option is A 3
A balanced chemical equation has an equal number of atoms on both the sides of a chemical reaction.

For the given equation:
$y F e (s) + 4 H_{2} O (g) \to F e_{3} O_{4} (s) + 4 H_{2} (g)$
Reactants Products

Elements No. of atoms Elements No. of atoms

Fe y Fe 3

O 4 O 4

H 8 H 8

Here, O and H atoms are balanced on both sides. To balance Fe atom, the value of $x$ should be 3.

Hence, the balanced equation is
$3 F e (s) + 4 H_{2} O (g) \to F e_{3} O_{4} (s) + 4 H_{2} (g)$


Elements	No. of atoms	Elements	No. of atoms
Fe	y	Fe	3
O	4	O	4
H	8	H	8

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Similar questions

Does the number of moles of reaction products increase, decrease or remain same when each of the following equilibria is subjected to a decrease in pressure by increasing the volume?

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Does the number of moles of reaction products increase, decrease or remain same when each of the following equilibria is subjected to a decrease in pressure by increasing the volume?

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Does the number of moles of reaction products increase, decrease or remain same when each of the following equilibria is subjected to a decrease in pressure by increasing the volume?

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(iii) $3 F e (s) + 4 H_{2} O (g) \leftrightarrow F e_{3} O_{4} (s) + 4 H_{2} (g)$

Q. In the equilibrium

4 H_{2} O (g) + 3 F e (s) ⇋ F e_{3} O_{4} (s) + 4 H_{2} (g)

, the yield of

H_{2}

can be increased by:

3 F e_{(s)} + 4 H_{2} O_{(g)} ⇌ F e_{3} O_{4 (s)} + 4 H_{2 (g)} +

heat. Which of the following effects disturb the system from equilibrium?

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Slide to the correct value of y to balance the given equation. yFe(s)+4H2O(g)→Fe3O4(s)+4H2(g)3

Slide to the correct value of y to balance the given equation.

$y F e (s) + 4 H_{2} O (g) \to F e_{3} O_{4} (s) + 4 H_{2} (g)$
3