Chemistry
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chemical equations, stoichiometry
Common mistakes in balancing equations
Why do students often get confused when balancing equations like Fe+HCl→FeCl2+H2\mathrm{Fe + HCl → FeCl₂ + H₂}?
Curious Corner
Sep 01, 2025
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The key is to balance atoms one by one. First Fe: already balanced (1 each). Then Cl: 2 needed, so write 2 HCl. Finally H: balanced naturally. Final equation: Fe+2HCl→FeCl2+H2\mathrm{Fe + 2HCl → FeCl₂ + H₂}. Tip: Always balance metals first, then non-metals, then hydrogen and oxygen.
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