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What are the tests to identify both unknown solids and unknown liquids?
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How are flame tests used in forensic science?
Flame tests are used to help identify substances used in murders
Why does dry HCl gas not change the colour of the dry litmus paper?
Litmus paper tests the acidity or baseness of liquids.
How mineralogist identify and classify materials?
there are a few basic tests to identify a material. hardness, color, lustor, crystal form, cleavage, and streak. I believe this is all of them, but it has been several years. They are classified by the same tests that identify them. For example, diamond is classified as a 10 hardness material (the only 10 hardness material) Glass is 7 hardness.
Vinegar and water are both clear liquids at room temperature what properties could you use to tell them apart?
You could find the densities of the liquids, and perform other simple tests such as the odor, and if you still can tell them apart, test the solubility of sugar in each liquid.
What branch of chemistry carries out tests to identify an unknown substance?
Analytical chemistry is concerned with investigation of the quantitative and/or qualitative characteristics of a given sample. For instance, an analytical chemist may qualitatively determine what the various polycyclic aromatic hydrocarbons in a tar sample are, and may also quantitatively analyze the concentrations of each species in the sample.
what is forensic drug testing?
Forensic drug testing is to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances. They are Presumptive tests and Confirmatory tests.
How do forensic scientists analyze unknown powders?
Forensic labs are often called in to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances: Presumptive tests (such as color tests) give only an indication of which type of substance is present -- but they can't specifically identify the substance. Confirmatory tests (such as gas chromatography/mass spectrometry) are more specific and can determine the precise identity of the substance.
Why would it be difficult to determine unknown liquids only be their flame tests?
no one knows That I am so sorry
How do I identify unknown materials?
Carrying out various tests such as heating or mixing with other chemicals can help to identify unknown materials. Heating can give different smells and different colors.
Why is it important to identify an unknown substance?
Because the substance could potentially be extremely toxic or harmful. You must never use an unknown substance in experiments without identifying it first, many tests can be undertaken to determine the cation and anion. These tests include the flame test, solubility tests, precipitate reaction tests and conductivity tests. These do vary depending on the unknown substance.
How can you identify unknown minerals?
you need to determine; hardness, color, transparency, and how they break. Those 4 combined will identify most minerals. There are other tests, but they get more complicated.
What are Coombs' tests?
Coombs' tests are blood tests that identify the causes of anemia
How could you identify two unknown white crystals such as salt and sugar?
If you can isolate the compound individually first, that's the best thing. Further to this, anion and cation tests will tell you what kind of salt it is. There are also tests to determine simple sugars.
Tests to identify metals?
There are many different tests that can be used to identify different metals. Using a magnet is a popular test to distinguish metals.
What tests can be conducted to identify the infectious agent of meningitis?
Special immunologic and serologic tests may also be used to help identify the infectious agent.
Why do scientists use precipitation tests?
to identify minerals
What can be accomplished by neurological tests?
Neuropsychological tests can identify syndromes associated with problems in a particular area of the brain.
