To classify these mixtures, we need to understand the difference between homogeneous and heterogeneous mixtures.
A homogeneous mixture is one that has a uniform composition throughout, meaning you can’t easily distinguish the different components. In contrast, a heterogeneous mixture consists of different substances or phases that are easily distinguishable.
- Lemon Juice: Heterogeneous (HT) – If we consider lemon juice with pulp, it clearly has distinct particles that can be seen and separated. However, if it’s strained, it might appear homogeneous, but traditionally, it’s classified as heterogeneous due to the pulp present.
- Tap Water: Homogeneous (H) – Tap water is a uniform mixture where the solutes are dissolved, and there’s no visible separation of components.
- Blood: Heterogeneous (HT) – Blood contains cells (like red blood cells and white blood cells) suspended in plasma, making it a mixture where different components can be seen and identified.
- House Paint: Heterogeneous (HT) – House paint usually contains various pigments, solvents, and additives that can settle or separate over time, leading to a visible difference in composition.
In summary:
- Lemon Juice: HT
- Tap Water: H
- Blood: HT
- House Paint: HT