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A pure substance is a material which contains atoms of only one kind.

It has fixed physical and chemical properties like boiling point, melting point, valency, density.

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Q: What is one characteristic of a sample of matter that indicates it is a pure substance?
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Related questions

What is characteristic property of a substance?

The characteristic properties of a substance are always the same whether the sample one is observing is large or small.


What is a property of matter that is the same no matter what the size the sample?

characteristic property :)


What is the characteristic of a pure substance?

The defining characteristic of a pure chemical substance is that any sample of it contains the same elements in the same mass proportions to one another.


What is a characteristics of a substance?

The characteristic properties of a substance are always the same whether the sample one is observing is large or small.


What effect does the amount of the sample of a substance affect its density?

it has no effect. density of a substance is the same no matter the size or shape of the sample.


Is every sample of matter substance?

Every sample of matter is not a substance because a matter may include multiple substances. A substance contains only one kind of matter.


A characteristic that depend upon the amount of matter in the sample is called?

That would be mass.


What is a sample of matter either a single element or a single compound?

a pure substance! ;)


What characteristic depends on the amount of matter in the sample This is based on the Classification of Matter Worksheet.?

extensive property, my dear Watson.


Is it true that the density of a substance is the same for all samples of the substance?

No, as density also depends on the state of matter in the sample of the substance.


Sample of matter that has the same composition and properties throughout?

term for that is pure substance


Does density change if the sample of the same matter is larger?

No density if a characteristic of matter. Density can vary with temperature and pressure, but a chunk of something twice the volume of another chunk of the same substance will weigh twice as much because the two chunks have the same density.