write a conclusion about pure and mixed substances.
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A pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample. Mixtures are physical combinations of two or more elements and/or compounds.
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Pure Substance:
Pure Substance is a type of matter with a fixed composition; every sample has exactly the same characteristic, properties and composition.
– Helium & H²O
Mixed Substance:
Mixture is a matter composed of two or more substances that can be separated by physical means; each which retain its own identity and properties.
– Concrete & Saltwater solution
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