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Trigonal planar and tetrahedrral geometries tend to be present in polar molecules.
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What is the syllable for attended?
at-tend-ed
Supervisory responsibilities tend to bring out a person's negative side?
Supervisory responsibilities tend to bring out a person's negative side. true or false?
Why the shape of very small object and very big object is spherical?
This is an outstanding question. On the atomic and molecular scale rotation tends to determine the spherical shape. Molecules do tend to organize in a spherical manner on a large scale as rain drops. However, should the raindrop grow too large as it falls neck instability tends to give it a barbell shape in which it will break into more than one sphere. But besides rotation for planets they tend to "organize" around a center of mass and gravitational forces are at work here. I welcome additional comments on this subject.
Of metals and nonmetals which tend to form positive ions?
The metals and non metals which tend to form positive ions are cations. It is because of their electronic configuration.
Do Texans tend to vote less than the national average?
yes
Water molecules attract other water molecules and tend to pile up via?
Water molecules attract the opposite poles of other polar molecules through poles present in water itself.
What kinds of molecules do water dissolve?
It dissolves all kinds of molecules. However, the ones that it dissoves well are molecules that it can hydrogen bond with or molecules that are polar that it can have dipole-dipole interactions with.
What does the science term called like dissolves like mean?
"Like Dissolves Like" is a concept in chemistry discribing hydrophobic (nonpolar) and hydrophilic (polar) interactions. Polar molecules, in order to reduce unfavorable interactions that require free energy to compensate for, tend to associate with other polar molecules. Non-polar molecules, likewise, associate with other nonpolar molecules. The terms hydrophobic and hydrophilic are used to describe a molecules tendency to associate with water. Polar molecules, using the "like dissolves like" concept associate with water, while nonpolar molecules tend to reduce interactions with water.
Why is a lipid bilayer incellmembrane considered as a barrier to the diffusion of polar molecules?
Polar molecules are hydrophilic in nature. They tend to repel from the lipid content and would easily adhere or mix with the water molecules. A lipid bi-layer consists of lipids and so it would not allow the polar molecules to pass through.
Why do charged and polar molecules dissolve in aqueous solutions?
Because water is polar, and polar solvants will dissolve polar solutes. :)
Why do non-polar substances tend to boil relatively low temperatures?
Nonpolar substances have lower melting and boiling points than polar substances because their particles are not attracted to each other like polar molecules are. They tend to be gases at room temperature (CO2, CH4, O2, etc). Not much heat is reguired to separate non-polar molecules from one another
Which tends to have a greater degree of symmetry a polar molecule or a nonpolar molecule?
A non-polar molecule. Bond dipoles tend to cancel each other out in the more symmetric molecules.
How easy or hard is it for polar molecules to pass through the cell membrane?
Polar molecules are effectively charged molecules. It's hard for them to cross the cell membrane because the membrane is comprised of an uncharged phospholipid bilayer. Charged molecules tend to have specific protein channels that allow them to cross the membrane.
Why can liquid boil at low temperatures?
Nonpolar substances have lower melting and boiling points than polar substances because their particles are not attracted to each other like polar molecules are. They tend to be gases at room temperature (CO2, CH4, O2, etc). Not much heat is reguired to separate non-polar molecules from one another
Do non polar molecules have both negative or positive ends?
Some but not most non polar molecules have both negative and positive "ends" to their individual bonds. Examples include tetrafluoromethane. By definition, however, a non-polar molecule does not have negative and positive ends to an entire molecule.
Why are electrons in a water molecule polar?
Electrons aren't polar, they're charged. Water molecules themselves are polar, because the electrons tend to hang around the oxygen more than they do around the hydrogens, rendering the oxygen end slightly negative in comparison.
Why does water weigh more then gasoline?
Water weighs more than gasoline because the particles in water are more dense than those in gasoline. This is because water molecules are highly polar and tend to attract each other. Gasoline molecules are not nearly as polar and do not attract each other.
