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Answered 2012-09-28 22:44:49

Each pure substance has its own unique melting and boiling point.

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Many substances have different melting and boiling points, thus one can use their melting and boiling points to identify them.


cause all pure substances have a fixed boiling and melting point unless impurities is added their boiling and melting will always remain the same.


The traditional ones are melting point and boiling point.


Atomic number, number of protons, melting point, boiling point, density..........


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


The melting point can help a scientist identify a substance.


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.


Melting point is a specific property of materials.


If the temperature is below the melting point, you know it is in the solid state. If the temperature is below the boiling point, and above the melting point, you know it is a liquid. If the temperature is above the boiling point, you know it is a gas, etc. (Note: melting point is the same as freezing point).


You can compare them to tell one liquid from another. All solid substances melt at one temperature only.


Yes. You can measure melting point of a solid, and boiling point of a liquid to help identify the substance. You could also measure temperature change for a set amount ot the substance for a given amount of heat absorbed. Use this to calculate the specific heat capacity and this would help to identify the substance.


A property is something that describes matter. Since every substance does not have the same boiling point or melting point these can be used to help describe the 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.


the boiling pointthe melting pointthe hardnessthe smelltake your pick



The melting point is required to test the purity of a compound. It helps to identify or characterize an unknown sample. It records new compounds to help in identification in future.


Not sure what you mean by "normal", but these might help:Melting Point: 44.15°CBoiling Point: 280.5°C


States of matter are generally described as solid, liquid and gas (although there are more to think about when you really get into science). As such a change in matter is seen to be a change in state; from solid to liquid (melting), from liquid to gas (boiling), from solid to gas (sublimation), from gas to liquid (condensation) and liquid to solid (freezing).Interestingly each chemical has a unique melting/freezing point and boiling/condensation point. We can use those temperatures to help us identify unknown substances.


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.


Properties of metals as high boiling point, high melting point, malleability, ductility, electrical conductivity, thermal conductivity, lustre are explained by the theory of metallic bonds.


when boiling water you will need to add salt to make it boil faster.so yes it does help the boiling point well that was stupid. The answer is 150 degress C.


these are the p[physical properties of the compound so if we know them so, when ever we handle them that is when ever we use them for the preparation of compounds so with the help of these physical properties we can further continue with the experiment


The temperature point to which you refer is known as the 'triple point' of water. This is at 273.16 K, or .01 deg Celsius. Other liquids and gases also have a triple point. In the case of water, this is the temperature at which its three phases; solid, liquid, and gas; may co-exist. The triple point of water is only one of a number of temperatures that are used to produce a wide and useful series of temperature scales.


It doesn't have a melting point as it is a thermosetting plastic, meaning it can be heated but it will not melt, instead the temperature will be raised until it burns. Hope this help :D



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