Physical properties are characteristics of a substance that can be observed or measured without changing the chemical composition of the substance. These properties provide information about how a substance behaves physically. Some examples of physical properties include:
1. Color: the visual appearance of a substance, such as red, blue, or yellow.
2. Melting point: the temperature at which a substance changes from a solid to a liquid state.
3. Boiling point: the temperature at which a substance changes from a liquid to a gas state.
4. Density: the ratio of mass to volume of a substance, which determines its heaviness or lightness.
5. Solubility: the ability of a substance to dissolve in another substance, such as the ability of salt to dissolve in water.
6. Conductivity: the ability of a substance to conduct heat or electricity.
7. Hardness: a measure of how resistant a substance is to scratching or denting, measured on the Mohs scale for minerals.
8. Odor: the characteristic smell of a substance, such as the smell of roses or gasoline.
9. Luster: the way a substance reflects light, such as being shiny or dull.
10. Magnetic properties: the ability of a substance to be attracted by a magnet or to be magnetized itself.
What are physical properties? Give some examples.
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