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It's because substances have different boiling point and freezing point. By finding the exact boiling point and freezing point, you can identify a substance.

Keep in mind that a material's melting point is the same as its freezing point. These are just different terms for the same thing, it just depends on whether energy is being removed from a substance (freezing) or if energy is being added to a substance (melting). The same thing also applies to the boiling/condensation point.

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17y ago

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How can the melting and boiling point help you identify it?

Melting and boiling points are physical properties unique to each substance, so knowing these values can help identify a substance. By comparing the observed melting and boiling points of an unknown substance to known values in a database, you can narrow down the possible identities of the substance. Substances with similar melting and boiling points are more likely to be the same compound.


How can the boiling and the melting point be used to help identify substances?

intermolecular forces are hard to overcome...apex


How do you identify solids at melting or boiling points?

Melting and boiling points are different for each compound or element.


How could the identify of a compound be established by melting point?

Pure substances have very specific melting (and boiling) points. Assuming the substance is pure you could measure the melting point and compare it to a known database of melting points.


What Five characteristics or properties used to identify substances are?

Flexibility, Smell, Odor, Boiling Point, Melting Point, Texture, Color (there's seven for you)


Do pure substances have a fixed boiling and melting point?

yes they have


Why can the boiling point and the melting point be used to help identify a substance?

The boiling and melting points are almost unique to individual substances. If it should happen that two possible substances have the same melting point, they can still be identified by the method of mixed melting points. If substances A and B have the same melting point and you mix them, the mixture will melt belowthe tabulated temperature. Thus if you mix your unknown with a sample of what you think it is, if you are right it will still melt sharply at the expected temperature, but if you are wrong it will melt gradually and at a lower temperature.


How do properties identify substances?

Properties of substances, such as color, odor, density, melting point, boiling point, and solubility, help to identify them. Analytical techniques like spectroscopy, chromatography, and mass spectrometry are also used to determine the composition and structure of substances. By comparing experimental data with known reference values, scientists can accurately identify substances.


A substance with a melting point of 50 degrees celsiusboiling point of 200 deg celsius?

The substance has a melting point of 50°C and a boiling point of 200°C. This information can help identify the substance by comparing it to known melting and boiling points of different substances. The melting point indicates the temperature at which the substance transitions from solid to liquid, while the boiling point is the temperature at which it transitions from liquid to gas.


How is the melting point of asolid and boiling point of a liquidaffected when impurities are added to the substances?

Adding impurities lowers the melting point and raises the boiling point.


Explain why the boiling point and the melting point can be used to help identify substances?

100 degrees mate. 100 degrees Celsius is the boiling point for pure water at 1atm or sea level. The boiling point is useful in identifying chemical compounds. Chemical compounds have different boiling points that are specific to it' s chemical composition. If you know what the boiling point or melting point is you can also tell if your compound is pure, as any impurities will change these.


What are some examples of physical properties scientist use to tell the differences between substances?

Scientists may use physical properties such as density, melting point, boiling point, and solubility to differentiate between substances. These properties are unique to each substance and can be measured to help identify the composition of a material.