Answer:
A mixture results when two substances are physically combined but don’t chemically react. The two types of mixtures are homogeneous mixtures and heterogeneous mixtures.
Homogeneous Mixtures
A homogeneous mixture is one which appears to have uniform composition. Samples taken from different parts of a homogeneous mixture have the same chemical composition. A homogeneous mixture consists of a single phase (e.g., solid, liquid, gas).
Heterogeneous Mixtures
A heterogeneous mixture lacks a uniform composition. Samples taken from different parts of the mixture won’t have the same composition. Usually, you can mechanically separate the components of a heterogeneous mixture (e.g., removing rocks from a mixture of rocks and sand). The constituents of a heterogeneous mixture may be the same phase (e.g., oil and water, which are both liquids) or different phases (olives in oil, which are a solid and a liquid).
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