Is hot coffee suspension solution or colloid?

* Suspension: A suspension is a heterogeneous mixture where particles are large enough to settle out over time.

* Colloid: A colloid is a heterogeneous mixture where particles are smaller than in a suspension, but larger than in a solution. They don't settle out easily.

Here's how coffee fits the definition of a suspension:

* Coffee grounds: These are the particles that make up coffee. They are large enough to be visible to the naked eye.

* Settling: If you let a cup of coffee sit for a while, you'll notice that the coffee grounds start to settle at the bottom. This is a key characteristic of a suspension.

Why not a colloid?

* Particle size: The coffee grounds are much larger than the particles found in a colloid.

* Stability: Colloids are typically more stable than suspensions, meaning the particles don't settle out as quickly.

Extra Notes:

* Some of the soluble components of coffee, like caffeine and sugars, form a true solution with water. However, the suspended coffee grounds make the overall mixture a suspension.

Let me know if you have any other questions!