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Definition: A chemical species which provides electrons for another chemical species.
Examples: Metallic zinc, Zn(s), is the reducing agent in the reaction:
Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g).
Reducing Agent Definition
Chemistry Glossary Definition of Reducing Agent
By Anne Marie Helmenstine, Ph.D., About.com
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