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hardness and streak
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∙ 14y ago
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Identify two advantages of mining minerals?
Mining minerals has way more than two advantages, but since you asked for 2, they create jobs (for miners) and not to mention the countless uses of the atual minerals and profits.
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.
List two things that line graphs allow scientists to do?
They allow scientist to identify trends and make predictions
What two groups of bacteria are you trying to identify when doing a mannitol galatinase and lipase tests?
Pathogenic and non-pathogenic Staphylococcus species.
What two tests would you use to identify talc?
I suppose the the visual inspection and the measurement of hardness are sufficient. A magnesium test may be useful.
Give two examples of how a rocks color provides clues to the rocks mineral composition?
This is out of "Prentice Hall Science Explorer"MINERAL COMPOSITION AND COLOR"Rocks are made of mixtures of minerals and other materials. Some rocks contain only a single mineral. Others can contain several minerals. These minerals are known as rock-forming minerals.A rock's color provides clues to the rock's mineral comp. For example, granite is generally a light-colored rock that has high silica content. Basalt, is a dark colored rock that is low in silica. But as with minerals, color alone does not provide enough information to identify a rock.Geologists observe the shape and color of crystals in a rock to identify the minerals that the rock contains. In identifying rocks, geologists also use some of the tests that are used to identify mineral's. For example, testing the surface of a rock with acid determines whether the rock includes minerals made of compounds called carbonates."
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.
Why is metamorphic rock hard?
because a metamorphic rock is made up of different rocks.
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.
What are two major groups of minerals?
what are the two major groups of minerals
What is two or more minerals called?
minerals
What ae the two physical properties of minerals?
what are two physical properties about minerals
