Elements and Compounds

Why are melting points useful?

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Answered 2009-07-28 10:10:26

Melting points can be helpful in distinguishing different substances. Pure substances usually have a unique fixed melting point. Same goes for the boiling points.

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Alkali metals have relatively low melting points compared to the other metals. Their exact melting points depend on the element itself. But it would be useful to note that their melting points decreases down group I.

Metals with very high melting points are useful

They are useful in (1) estimating the purity of a substance and (2) tentative identification of a substance.

Probably either a lead or an antimony element or alloy would have a low enough melting points to be useful in sprinkler heads.

so that when cars and stuff heat up they do not melt

Yes, melting points of metals are higher than the melting points of many other elements or compounds.

positive ions have high melting points

Different proteins have different melting points.

Yes the melting and freezing points are the same.

The melting points of organic compounds will vary and are related to the boiling points. Organic compounds that have strong cohesive forces will generally have higher melting points.

Not all compounds have high melting points and high boiling points.

Metals melting points are generally higher than nonmetals melting points.

They have low melting points and high reactivity.

1063 °C(lit.) Freezing points and melting points generally can be used interchangeably. Scientific data is reported as the melting point or mp. Purity will also effect the freezing point but very useful in determining the purity of a substance.

All objects have melting points but they are high sometimes and low sometimes. There is no object without a melting point.

yes all metals have high melting points :)

It varies on which metalloid you are talking about but in general they have low melting points

Ionic compounds have high melting points.

Covalent compounds have lower melting points.

Minerals with higher melting points will crystallize.

The melting points of compounds indicate the strength of the bonding pattern of the compounds. Compounds with bonds that are stronger will have higher melting points.

No, they only have freezing points & gaseous points (it where the liquid becomes a gas). Why don' they have melting points? Well take this as an example: If you left your chocolate bar out in the sun it will melt and become a liquid. There for becoming a liquid IS melting, there is no further melting points to an object ounce it becomes a liquid. Substances have melting points. The melting point is the temperature at which a solid becomes a liquid, in other words, the temperature at which it melts.

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