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What is the reducing agent in the reaction below?
CrO3 + 2Al mc026-1.jpg Cr + Al2O3
CrO3
AI
Cr
AI2O3
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Answered by
GPT-5 mini
AI
Al (elemental aluminum).
Reason: Cr in CrO3 is reduced from +6 to 0, while Al is oxidized from 0 to +3 in Al2O3. The species that is oxidized (Al) is the reducing agent. For half‑reactions: 2Al → 2Al3+ + 6e− and Cr6+ + 6e− → Cr.
Reason: Cr in CrO3 is reduced from +6 to 0, while Al is oxidized from 0 to +3 in Al2O3. The species that is oxidized (Al) is the reducing agent. For half‑reactions: 2Al → 2Al3+ + 6e− and Cr6+ + 6e− → Cr.
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