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Was it possible to determine if a substance was pure by its appearance?
Wiki User
∙ 14y ago
That depends on the substance. Pure corundum (sapphires) can be determined by their color, which comes from impurities, meaning only the colorless corundum is pure. However, other substances, like water, may contain nonvisible impurities.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoVery rarely is possible; generally to identify an element or compound it is absolutely necessary to realize a deep chemical/physical analysis.
Wiki User
∙ 14y agoNo,you cannot be sure. But some clues are if it is one colour throughout it's entire body. This is a slight giveaway, but the only real way is to run chemical tests on it.
Wiki User
∙ 14y agoNo.
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Is acetone a pure substance or mixture?
pure substance, propanone
What is a pure substance classified as?
A pure substance is classified by having a definite and constant composition. The substance can be either an element or a compound, but what makes the substance pure, is that it does not vary.
Is glycerol a pure substance?
it s pure liquid.
What is a pure substance that contains only one kind of particle?
I thought it was pure substance. But i recently took a Science Test of these subject(i'm also in 8th grade) and it was the same question...EXACTLY! I put down Pure substance as well but appearantly the answer was "All of the Above" which included A.Pure Substance B.Compound C.Element ... so as long as you can prove it was only pure substance( This was for extra credit to get points back on the test for my teacher) You got the points. In my opinion a Pure Substance is the substance in which there is only one type of particle. I hoped this helped :)
Is hydrogen peroxide a pure substance or a mixture?
Mixture, because it is mixed with all sorts of chemicals, such as smog, and or pollen.Mixture is NOT a pure substance, because to be a pure substance, it can't be mixed with anything.
If Using density how dowe determine if a substance is pure or not?
If a substance is not pure, the density may, or may not, change, compared to the pure substance.
Is radioactive waste a pure substance or a mixture?
Radioactive waste is nearly always a mixture but it is possible to be a pure substance.
How you would determine that the distilleate collected is a pure substance?
Pure Substances Boil at a Constant Temperature while Mixtures do not, To determine if the Distillate is pure the Liquid distillate would be boiled and for example if the substance is water, it should begin boiling at exactly at 100 degrees celcius if it boils below or above that point it is not a pure substance
What is the color of pure water?
A pure substance is a substance that cannot be separated by physical means. To determine whether a substance is pure, let a container of it evaporate. If there is no residue then the substance is pure.
How can a decomposition reaction help you determine whether a pure substance is an element or a compound?
If a substance undergoes a decomposition reaction, it is a compound. Pure elements cannot decompose because there is nothing for them to decompose into.
Three ways you can determine if a substance is a mixture or a pure sample.?
One way is if it can be physically combined.
How do you determine that the distillate collected is a pure substance?
You can check certain properties, such as density and boiling point.
Is acetone a pure substance or mixture?
pure substance, propanone
What is the best method to determine if a brownish liquid is a mixture or pure substance?
The best method is chemical analysis.
Is a tin a pure substance?
Pure substance
Is a lemon a pure substance?
it is a pure substance.... not
Is the difference between a pure substance and a mixture always easy to observe?
Frequently it is not possible.
