* Suspensions are mixtures where particles are large enough to be seen with the naked eye and will settle out over time.
* Sodium hydroxide dissolves completely in water, forming a solution. This means the NaOH molecules are dispersed evenly throughout the water at a molecular level.
Here's how to think about it:
* Suspension: Think of sand in water. The sand particles are visible and will eventually settle at the bottom.
* Solution: Think of salt in water. The salt dissolves completely, and you can't see the individual salt molecules anymore.
Key difference: The particles in a suspension are physically separate, while the particles in a solution are mixed at the molecular level.
