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Biology 19 Online
OpenStudy (anonymous):

Discuss the unique properties of water.

OpenStudy (anonymous):

1) Water has an unusual ability to dissolve other substances. 2) It has an anomalously high dielectric constant. 3) It has the ability to form colloidal sols. 4) The water molecule can form hydrogen bridges with other molecules. so far thats all i got

OpenStudy (greatlife44):

yes @MikuxLuka I agree but we must however understand why water has some of these properties.

OpenStudy (greatlife44):

First: water is a molecule, with one oxygen atom and two hydrogen atoms. because water has a greater electronegativity than does hydrogen, the electrons spend more time around the oxygen than they do the hydrogens. this creates what we call polarity, why? because there is a net electronegativity difference in our molecule. the lone pairs of electrons, make our water a bent shaped molecule. so in water the electrons are shared, which is covalent but they are polar because of the electronegativity difference.

OpenStudy (greatlife44):

the polarity of water, gives it also the ability to dissolve a number of solutes, as long as those solutes are polar themselves, because remember like dissolves like.

OpenStudy (greatlife44):

I also want to explain your other point @MikuxLuka #4 a bit more Water has an ability called hydrogen bonding, which is a highly electronegative element oxygen, fluorine, and or nitrogen covalently bonded to nitrogen. the hydrogen bonded to the element can act as a hydrogen bond donor, while the lone pair of electrons on the element, oxygen,fluorine, and or nitrogen, act as a hydrogen bond acceptor. |dw:1441758723375:dw| Think about this, remember see all those bonds water makes? the reason why water's boiling point is high because of all the bonds that exist between different water molecules and you need to have a lot of energy needed to break those bonds. remember, in order for something to boil and go from liquid to gas you need to over come the inter molecular forces which I have drawn here for you in the figure above.

OpenStudy (anonymous):

ah i see thank you!!

OpenStudy (greatlife44):

|dw:1441758904607:dw|

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