You could test its melting point, since pure glucose has a known melting point of
146oC.
Observation of an object at rest or stationary would not show molecular motion.
A scientific test you do on water similar to a chemical test
The thermometer will show the temperature of the pure water being collected, which should be around the normal room temperature. If the water was heated or cooled prior to collection, the thermometer will reflect that temperature instead.
Boil it until the water is gone. You will have a deposit of salts left behind.
Oxygen + Glucose > Water + Carbon Dioxide or iron + oxygen ---> Ironoxide
Observation of an object at rest or stationary would not show molecular motion.
You could test a sample with a mass spectrometer, which would show all the elements present. If there are no elements present other than sodium and chlorine, then you have pure sodium chloride.
Both will show in a urine sample if tests are done to look for those drugs.
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No, a pure substance would only show a single color or spot in a chromatogram because it consists of only one compound without any impurities. Each compound present in a sample will appear as a distinct spot with a unique color in the chromatogram.
the space used to show a sample promblem.
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The experimental oxygen would be higher than the theoretical oxygen in a contaminated sample of potassium chlorate. This is because the moisture would contribute to the sample's weight when measured, resulting in a higher oxygen content calculation compared to the theoretical amount based on the chemical formula.
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