Pure substance
Hydrocarbon, a category of substances consisting only of hydrogen and carbon.
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What does it mean to have the same properties?
Every sample of a given substance has the same properties because a substance has a fixed, uniform composition. ... An element has a fixed composition because it contains only one type of atom.
Is pure substance has the same properties throughout the sample?
A pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample.
