Classify each of the following mixtures as homogeneous or heterogeneous:
1. Shampoo
2. Vegetable Oil
I think both are homogeneous. Can you separate anything or see any particles/specks/etc in the shampoo if you pour some into your hand? It looks the same throughout to me. Vegetable oil is the same. Vegetable oil may be a mixture of several oils but, treated as the shampoo above, I don't see any differences if I look at it when poured from the container.
1. Shampoo: Shampoo is a homogeneous mixture. It appears as a single phase with a uniform composition throughout.
2. Vegetable Oil: Vegetable oil is also a homogeneous mixture. Like shampoo, it appears as a single phase with a uniform composition throughout.
To classify mixtures as homogeneous or heterogeneous, we need to understand the definitions of these terms.
A homogeneous mixture is one where the components are evenly distributed throughout the mixture and cannot be easily distinguished. In other words, it appears as a uniform composition throughout.
A heterogeneous mixture, on the other hand, is one where the components are not evenly distributed and can be easily distinguished. In other words, it appears as a non-uniform composition.
Now, let's classify the provided mixtures:
1. Shampoo: Shampoo is generally a mixture of water, surfactants, conditioning agents, fragrances, and other ingredients. Since all the components are thoroughly mixed and cannot be easily distinguished, shampoo is considered a homogeneous mixture.
2. Vegetable Oil: Vegetable oil is obtained by extracting or pressing the oils from various plant sources. It is primarily composed of triglycerides (fatty acids) and minor amounts of other compounds. When left undisturbed, vegetable oil appears as a uniform liquid. Therefore, vegetable oil is also considered a homogeneous mixture.
In summary:
1. Shampoo: Homogeneous mixture
2. Vegetable Oil: Homogeneous mixture