What is the term for matter having a definite composition,but variable properties from sample to sample;for example,alloys and solutions?

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Homogeneous mixtures, like alloys and solutions, have a definite composition but can have variable properties from sample to sample. Compounds have a definite composition and properties, elements are pure substances that cannot be broken down into simpler substances, and heterogeneous mixtures have a variable composition and properties throughout the sample.

What Is the Term for Matter Having a Definite Composition,but