1. Donate Electrons: Reducing agents are substances that lose electrons in a chemical reaction. Think of them as generous donors, giving away their electrons to another species.
2. Get Oxidized: Because they lose electrons, reducing agents themselves become oxidized. This means their oxidation state increases (becomes more positive).
3. Reduce Other Species: The electrons donated by the reducing agent are accepted by another species, causing that species to gain electrons. This process is called reduction, hence the name "reducing agent".
Example: In the reaction between zinc and copper(II) ions:
Zn(s) + Cu²⁺(aq) → Zn²⁺(aq) + Cu(s)
* Zinc (Zn) is the reducing agent. It loses two electrons, becoming oxidized to Zn²⁺.
* Copper(II) ions (Cu²⁺) are the oxidizing agent. They gain two electrons, becoming reduced to copper metal (Cu).
In summary: Reducing agents are the electron donors in redox reactions. They get oxidized themselves while reducing another species by providing electrons.
