What is zeta potential?

Explanation

### Step-by-Step Solution to the Question: What is Zeta Potential?

1. **Understanding the Concept of Zeta Potential**:
Zeta potential is a scientific term used to describe the electrokinetic potential in colloidal systems. It is the potential difference across the phase boundary of a particle in a colloid.

2. **Formation of Colloids**:
To illustrate zeta potential, consider the reaction between silver nitrate (AgNO3) and potassium iodide (KI). When these two substances react, silver iodide (AgI) precipitates out, while potassium nitrate (KNO3) remains in solution.

...