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There are many different techniques of chemical analysis, and the first step is to just look at the substance and see if you can observe anything non-homogeneous in its appearance. If the substance is a solid you could add water and see if all of it dissolves or just part of it. Chromatography is a useful technique; if you put a liquid on a paper or paper-like material, different substances diffuse at different speeds. Spectrography can be used to identify the constituent elements, which is at least a major clue as to what you are dealing with in terms of possible compounds. Distillation could be used to see if there is a component that has a lower boiling point than other components. A centrifuge can be used to separate out a denser component. And so forth.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoCompare its physical properties to standards. If that is not enough, the use of various equipment can be used to determine what is present and in what amounts; further tests can be used to determine what the exact mix is, and how exactly everything is bonded.
Wiki User
∙ 7y agoThis is possible only by chemical analysis.
Wiki User
∙ 10y agoChemical analysis
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A pure substance is the what throughout?
A pure substance is the same throughout. When a substance is 100% something it is pure.
What does a chemical formula tell you about a pure substance?
It tells you the elements and the proportions of those elements that are present to make the pure substance.
Why silicon is a pure substance?
silicon is a pure substance because it is an element and as we know an element is a pure substance
Why is air a pure substance?
Air is not a pure substance.
Is sulfur a pure substance?
pure substance
A pure substance is the what throughout?
A pure substance is the same throughout. When a substance is 100% something it is pure.
What does a chemical formula tell you about a pure substance?
It tells you the elements and the proportions of those elements that are present to make the pure substance.
What are two reasons why density is a useful property identifying substances?
Density can tell you how "pure" a substance is. Since each substance has a specific density in its "pure" state, having no other substances in its composition, by measuring it density you can tell how pure the mineral or substance is, 99.9% pure gold.
Is liquid plus air a pure substance?
No. To start with, air is not a pure substance, and mixiong it with something else just makes it worse.
What are two reasons why density is a useful property for identifying substances?
Density is specific for each substance. Also the measurement is generally simple.
What is the characteristic of a pure substance that can be observed without changing the substance into something else.?
A physical property can be observed without changing the substance into something else.
An what property is characteristic of pure substance that can observed without changing the substance into something else?
A physical property can be observed without changing the substance into something else.
What is a property of characteristic of a pure substance that can be observed without changing the substance into something else?
A physical property can be observed without changing the substance into something else.
What is a property of a characteristic of a pure substance that can be observed without changing the substance into something else?
A physical property can be observed without changing the substance into something else.
What is a pure substance that cannot be decomposed or converted into something simpler?
An element
How do you tell pure and mixture apart?
a pure substance only has one element and a mixture has many different compounds
Is acetone a pure substance or mixture?
pure substance, propanone
