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Answered 2012-01-10 02:17:24

The melting point and boiling point of a pure substance are very specific numbers; knowing these allows you to narrow down the possible identity of the substance.

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There are many physical properties that do NOT identify a substance. For example, state, density, boiling point, melting point, and mass are all physical properties that do NOT identify a substance.

The traditional ones are melting point and boiling point.

Melting and boiling points are physical properties of materials.

Every substance has certain properties that show things about them, such as odor, taste, malleability, hardness, color, state at room temperature, and melting/boiling point. If you know the color of a substance, it is far easier to determine what that substance is, and if you know the color and the boiling point, your choices are limited even further. Using the physical properties of a substance, you can identify the substance based off of its unique properties or combinations of properties.

melting point boiling point density These are three physical properties that help a scientist to identify and classify matter. These temperatures are always the same for a unique substance.

some physical properties are its density,boiling point. Physical properties are characteristics that can be observed or measured about a substance.

As long as it is a pure substance (i.e. you can write a chemical formula for it), you can compare to the physical properties (e.g. melting point, boiling point, conductivity) in the SI data book. You can back this up with known chemical reactions for the substance.

odor, texture, melting point, boiling point, solubility, polarity, specific heat, and density

Physical properties can be tested without changing the substance a new substance. Color, density, volume and melting and/or boiling point are examples of physical properties that can be observed and/or tested.

This is possible because the melting and boiling point are specific properties.

Physical properties are properties that can be observed without changing the chemical composition of the substance. Density, boiling point, and melting point are examples of physical properties.

color, crystalline structure, melting point, boiling point, hardness, magnetic properties, X-ray diffraction data, etc.

A certain substance has certain melting and boiling points which is what helps identify a substance.

Physical property is a property that a substance has which can be measured. For instance, some properties are melting points or boiling points.

Characteristics of a substance are called properties. Substances have chemical properties - how they react with other substances and physical properties - boiling and melting point, colour, solid liquid or gas, smell...

boiling point --------- Boiling point is a specific characteristic of a substance or element; the mechanical strength, the viscosity, the electrical resistivity are more difficult to be used for a sure identification of a substance.

a physical property a chemical property; physical properties are properties such as freezing/melting/boiling points

Although is would be difficult to determine the nature of a sample with only physical properties, there are many physical properties that could be used. For one thing, the boiling point and melting point of the liquid could be determined. Also, its density and color could help determined what the substance is.

Physical properties include density, melting point and boiling point. Chemical properties include flammability (how well the substance catches fire), oxidation (how well the substance reacts with oxygen) and reactivity (how well the substance chemically combines with other substances).

Some intensive physical properties are temperature, density, specific gravity, viscosity, melting point, boiling point, color, and flammability.

A chemical property is an ability a substance has: Flammability and oxidize. A physical property is a characterization of a substance: Density and Boiling point.

Examples: density, hardness, boiling point, refractive index.

Pressure is the physical effect that can change the boiling point of a substance.

If you know the melting point and boiling point of a substance, you could look them up in a table to see what substances have those melting and boiling points. In practice, there are lots of other tests you'd probably want to do in addition, because in general there's no guarantee that an unknown substance is a single pure compound.

When a substance reaches its freezing point or boiling point, it also undergoes a physical change from one phase to another, changing some of its physical properties.