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Nonpolar
C18 bonded to silica is considered non-polar. The C18 refers to a hydrocarbon chain with 18 carbon atoms, which is largely hydrophobic due to the dominance of carbon and hydrogen atoms. In contrast, silica (SiO2) is polar due to its silicon-oxygen bonds. However, the non-polar nature of the C18 chain outweighs the polar characteristics of silica, resulting in a non-polar surface that is typically used in reverse-phase chromatography.
It is non-polar
Polar molecules reacts with polar molecules and non-polar molecules react with non-polar molecules.
polar
according to like dissolve like theory polar dissolves in polar and non polar dissolves in non polar metane is non polar so does not dissolves into water but difference in electronegativty of carbon and hydrogen there is some charge sepration thats why methane in water is little soluble
Water attracts polar molecules and repels non-polar molecules because water has polar molecules. Water does have a net dipole though it doesn't have net charge.
http://encarta.msn.com/encyclopedia_761570078/kerosene.html This website through Encarta will explain to you the properties of Kerosene and tell you that it is insoluble. Kerosene with most other Alkanes are non polar, water is polar. Non polar molecules can only dissolve with other non polar molecules. The same for polar in that they cannot dissolve in any other but polar molecules.
non-polar
It is non polar.
Polar contains polar. Non-polar contains nothing.
ClO4 is polar.
Nonpolar
Every molecule has a polarity. They can either be non-polar (same on both sides) or polar (different on both sides). For example the molecule CO2 is a non-polar molecule. H20 (water) is a polar molecule (due to Valence Shell Electron Pair Repulsion theory (VSEPR)).
C18 bonded to silica is considered non-polar. The C18 refers to a hydrocarbon chain with 18 carbon atoms, which is largely hydrophobic due to the dominance of carbon and hydrogen atoms. In contrast, silica (SiO2) is polar due to its silicon-oxygen bonds. However, the non-polar nature of the C18 chain outweighs the polar characteristics of silica, resulting in a non-polar surface that is typically used in reverse-phase chromatography.
It is non-polar, covalent.
Polar contains polar. Non-polar contains nothing.