The answer would be C8H18, or octane. Column chromatography is a separation technique that works off of polarity. The stationary phase, in column chromatography, are non-modified silica gels. Silica gels are normally polar. This means the solvent that will elute first are non-polar molecules...then polar molecules. The polar silica gels have a stronger interaction with polar molecules like CH3OH, and therefore will lag the solvent. Additionally, as you decrease the carbons, in hydrocarbons, the molecule becomes more polar. This is not C6H6 isn't the answer and octane is.
flow of charge of electrons cause current in wire.
Heres the answer
<span>Elements have the same atomic number, </span>not<span> the same atomic mass. Elements with the same atomic number, but different atomic masses are called </span>isotopes. ... Since Carbon-14 and Nitrogen<span> have different atomic numbers (i.e. different numbers of protons), they can never be the same element.
Hope this helped!</span>
Answer:
melting point
Explanation:
Phase changes happen when you reach certain special points. Sometimes a liquid wants to become a solid. Scientists use something called a freezing point or melting point to measure the temperature at which a liquid turns into a solid. There are physical effects that can change the melting point.
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