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Polar molecules have an unequal distribution of electrical charges.
Elza Olson
Wiki User
∙ 16y agoPolarity is measured on a scale of electronegativity (the electron disparity between two elements that are combined in a compound). The more electrons you take from your partner element in the bonding process, the greater your negative charge, and the greater your electronegativity.
There are three terms to describe the polarity of a given molecular bond:
Ionic
Polar covalent
Non-polar covalent
Ionic is the most polar - essentially, one atom physically takes electrons from another atom, creating a huge electron disparity between the two atoms. This tends to happen in molecules where one atom has very few valence electrons and the other has a lot of valence electrons. Sodium chloride (NaCl) is a good example of an ionic bond.
Polar covalent is the mid-range - technically closer to ionic. This happens when one atom attempts to take electrons from its partner, but cannot quite attract them all to itself. The result is a covalent bond between the two atoms where the valence electrons are "shared," but the sharing is unequal. One atom pulls the "shared" electrons a little closer to itself. Polar covalent bonds usually occur between very electronegative elements; hydrogen paired with elements like oxygen and fluorine almost always creates polar covalent bonds. A good example of a polar covalent bond is found in water (H2O).
Non-polar covalent is the least polar - in fact, it is not polar at all. This occurs when valence electrons are shared equally between two atoms. There is little or no tendency for either atom to pull any of the electrons toward itself. Non-polar covalent bonds can often be seen in molecules with two non-metals. Methane (CH4) is an example of a non-polar covalent bond.
Wiki User
∙ 15y agoThe arrangement or geometry of the atoms in some molecules is such that one end of the molecule has a positive electrical charge and the other side has a negative charge. If this is the case, the molecule is called a polar molecule, meaning that it has electrical poles. Otherwise, it is called a non-polar molecule. Whether molecules are polar or non-polar determines if they will mix to form a solution or that they don't mix well together. (If the difference in electronegativity for the atoms in a bond is greater than 0.4, we consider the bond polar. If the difference in electronegativity is less than 0.4, the bond is essentially nonpolar.)
Wiki User
∙ 11y agoin non-polar molecules, there is no net charge
polar molecules have partial charges
Wiki User
∙ 11y agoA polar molecule is formed between two dissimilar atoms but a non polar molecule is formed between similar atoms.
Eg: H2 , Cl2 ... are non polar molecules but HCl is a polar molecule.
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How does the difference between polar and nonpolar molecules affect their interactions?
it makes them dissolve in water easier.
Explain why nonpolar substances generally do not dissolve in polar solvents?
No. Water has polar molecules so only polar molecules will dissolve in water. Nonpolar molecules will only dissolve in nonpolar solvents. For example, lipids will dissolve in ethanol.
What polar molecules are attracted to water?
Hydrophobic molecules do not dissolve in water. This is because water is hydrophilic. Another way to say this is that lipids, which are nonpolar, cannot dissolve in water, which in polar.
Is bacteria and virus polar or non polar?
Bacteria and viruses are not molecules and are neither polar nor nonpolar. The contain both polar and nonpolar molecules.
How polar and non polar bonds affect solubility?
Molecules with many polar bonds are soluble in polar solvents.Also, molecules with none or few polar bonds (many non-polar bonds) are soluble in non-polar solvent. e.g Water is a polar solvent so substances with many polar bonds are soluble in it.
How does the difference between polar and nonpolar molecules affect their interactions?
it makes them dissolve in water easier.
What are the physical differences between polar and nonpolar molecules?
polarity... polar is the mid- range; nonpolar is the least polar.
Explain why nonpolar substances generally do not dissolve in polar solvents?
No. Water has polar molecules so only polar molecules will dissolve in water. Nonpolar molecules will only dissolve in nonpolar solvents. For example, lipids will dissolve in ethanol.
What polar molecules are attracted to water?
Hydrophobic molecules do not dissolve in water. This is because water is hydrophilic. Another way to say this is that lipids, which are nonpolar, cannot dissolve in water, which in polar.
Is bacteria and virus polar or non polar?
Bacteria and viruses are not molecules and are neither polar nor nonpolar. The contain both polar and nonpolar molecules.
Are lipids polar molecules?
no they are not, they are nonpolar molecules
What molecules are not attracted to polar molecules?
Nonpolar
Why do polar and nonpolar molecules have different properties?
Compounds differ because of differences in attractions between their molecules.
Why do polar and nonpolar molecules have different properies?
compounds differ because of differences in attractions between their molecules.
Why do polar nonpolar molecules have different properties?
Compounds differ because of differences in attractions between their molecules.
Why polar and nonpolar molecules have different properties?
Compounds differ because of differences in attractions between their molecules.
How polar and non polar bonds affect solubility?
Molecules with many polar bonds are soluble in polar solvents.Also, molecules with none or few polar bonds (many non-polar bonds) are soluble in non-polar solvent. e.g Water is a polar solvent so substances with many polar bonds are soluble in it.
