Question

Which of the following CANNOT be considered a single phase?

a) a pure solid
b) a pure liquid
c) a homogeneous mixture
d)a heterogeneous mixture

Answer 1

d) a heterogeneous mixture

Step-by-step explanation:

Hello,

In heterogeneous mixtures there are distinguishable constituents, it means that we could have liquids and solids into the same mixture unlike homogeneous mixtures in which the constituents are indistinguishable (they are usually single-phased (of course, a pure solid or a pure liquid are often single-phased).

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Answer 2

A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.
The option that cannot be considered a single phase is D. a heterogeneous mixture.