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  1. 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.

  2. A pure substance is a single substance on its own. Elements and compounds are pure substances, but mixtures are not. Compounds are very different from the elements they contain.

  3. A sample of matter is one of two things – it is either a pure substance (that is, a single substance) or it is a mixture of two or more substances. A pure substance contains only one type of substance.

  4. Mixture and pure substance are two different types of matter. A mixture is a combination of two or more substances that are physically combined and can be separated by physical means. It does not have a fixed composition and can vary in its properties depending on the ratio of its components.

  5. Feb 2, 2017 · The main difference between pure substance and mixture lies in their composition. A pure substance contains only one kind of compound. It can be the same molecule or atom.

  6. Explain the difference between a pure substance and a mixture. Explain the difference between an element and a compound. Explain the difference between a homogeneous mixture and a heterogeneous mixture.

  7. There are different ways to separate mixtures, such as filtration, crystallisation, simple distillation, fractional distillation and chromatography. The method chosen depends on the type of...

  8. When we speak of a pure substance, we are speaking of something that contains only one kind of matter. This can either be one single element or one single compound, but every sample of this substance that you examine must contain exactly the same thing with a fixed, definite set of properties.

  9. Pure substances exhibit consistent physical and chemical properties, allowing for predictable behavior under specific conditions. On the other hand, a mixture is a combination of two or more substances that are physically blended together.

  10. You can classify matter as a pure substance, or as a mixture. Learn the differences between the two and the different types of each.