Pure Substance vs Mixture — Difference (with Table)
Pure Substance vs Mixture compared side by side — a 7-row comparison table and 4 key points. Class 9-12 Chemistry, free and no sign-up.
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TL;DR: Pure Substance vs Mixture compared side by side — a 7-row comparison table and 4 key points. Class 9-12 Chemistry, free and no sign-up.
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The main difference between Pure Substance and Mixture: Pure substances have a fixed composition and consistent properties, while mixtures have variable composition and properties. These classifications are fund
Pure Substance vs Mixture — Comparison Table
| Basis | Pure Substance | Mixture |
|---|---|---|
| Composition | Fixed, definite composition | Variable composition |
| Properties | Constant, unique properties | Varies depending on proportions |
| Separation | Cannot be separated by physical means | Can be separated by physical means |
| Melting/Boiling point | Sharp, definite melting and boiling points | Range of melting and boiling points |
| Types | Element or Compound | Homogeneous or Heterogeneous |
| Examples | Pure water (H2O), pure iron (Fe) | Salt water, air, concrete |
| Chemical reaction | New substance may form | No new substance formation |
Key Points
- Pure substances have fixed composition; mixtures have variable composition
- Pure substances have sharp phase-change temperatures; mixtures have ranges
- Elements and compounds are pure substances; mixtures are combinations
- Pure substances contain only one type of particle; mixtures contain multiple types