A pure substance is one of uniform and invariable chemical composition. Water, nitrogen, helium, carbon dioxide, for example, are all pure substances. Air a mixture of several gases is regarded as a pure substance because it has a uniform chemical composition. However, a mixture of oil and water is not a chemical substance since oil is not soluble in water.
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Seller Price | GHC 0 |
Added | 26 May, 2023 |
University | KNUST |
Course | Thermodynamics |