Define the Electrochemical reaction.

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Electrochemical Reaction:**
An electrochemical reaction is a chemical process that involves the transfer of electrons between two substances. This type of reaction occurs when chemical energy is converted into electrical energy or vice versa.

2. **Components of Electrochemical Reactions:**
- **Electrolyte:** A substance that conducts electricity when dissolved in water or melted, allowing the movement of ions.
- **Electrodes:** Two conductive materials (anode and cathode) where the reactions occur. The anode is where oxidation takes place, and the cathode is where reduction occurs.
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