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Chemistry NMDCAT MCQs Moles and Avogadro's Numbers Moles and Avogadro’s Numbers
nmdcat.online July 2, 2026

During balancing of Fe + H₂O → Fe₃O₄ + H₂, the sum of coefficients becomes

A. 8
B. 10
C. 12
✓
D. 14

📝 Explanation

The balanced equation is 3Fe + 4H₂O → Fe₃O₄ + 4H₂. Their sum is 12.

📖 Additional Information

  • 8
  • 10
  • 12
  • 14

The balanced equation is 3Fe + 4H₂O → Fe₃O₄ + 4H₂. Their sum is 12.

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