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Why is knowing the melting point of a substance not enough information to identify the substance?
Wiki User
∙ 14y ago
Because you need to know that it is absolutely pure if you are to rely absolutely on its M.P. Alloys have a wide range of MPs, depending on the exact composition. If you can be sure that your sample is pure lead then you have already identified it !
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoYou could see which one would melt first.
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How do melting points help scientists?
The melting point can help a scientist identify a substance.
How could you use the physical properties of melting and boiling point to identify 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.
What is the significance of boiling point and melting point of a substance?
Melting points and boiling points are phyical constants which means specific compounds have specific melting/boiling points. Therefore you can identify a substance if you determine the mp/bp. Also you measure the purity of a mixture using melting point tests.
What physical property dose not identify a substance?
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.
Which term is defined as the process by which a substance changes state from solid to liquid-?
melting
What is important of melting point?
Knowing the melting point of a substance provides information to determine what the substance is if its unknown. If you are making a substance, checking the melting point will let you know if you have made what you set out to make, (because impurities can mess up the melting point)
How do melting points help scientists?
The melting point can help a scientist identify a substance.
What property is used to identify a pure substance?
melting point
How can the melting and boiling point help you identify it?
Each pure substance has its own unique melting and boiling point.
How does knowing the melting point of a substance help us with solidification?
i dont know :P
How do you identify the change of state a substance is undergoing?
through it's boiling, melting, and freezing point.
What are you physical properties that can help you identify a substance?
The traditional ones are melting point and boiling point.
How do the melting and boiling point determine the purity of the substance and identify them?
*usually* melting point is a good indicator of a substance's purity. The technique of melting point determination is used frequently in organic chemistry labs.
Name the 3 physical properties that can help identify a substance?
texture,melting point and odor ;D
What are two physical properties that can help you identify a substance?
The traditional ones are melting point and boiling point.
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.
How could you use the physical properties of melting and boiling point to identify 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.
