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Biology 23 Online
OpenStudy (anonymous):

can anyone answer this question please. in the following compounds; sodium chloride,hexane, ethanol, hydrochloric acids, sodium hydroxide, detergents and ammonium nitrates you need talk about all of there -melting/boiling point -solubility in water with references to ionic or covalent -hydrophilic or hydrophobic -intramolecular forces i dont think any one would be able to do it i challenge you guys to do it

OpenStudy (anonymous):

you know what? why don't you start and I finish? :-)

OpenStudy (blues):

Perhaps you (esmail) should build a table with the compounds on one side, the various characteristics on the top and the salient points in the cells...

OpenStudy (andrew314):

Alright, well the important thing to thing about is the strength of the interactions between the molecules. The types of interactions between molecules are induced dipoles, permanent dipoles (both types of van der waal interactions, I believe), ionic, and hydrogen bonding. Melting/boiling point will increase with stronger intermolecular bonds. Things will only be soluble in water if the atoms it is made of atoms of different electronegativities, or connected by ionic bonds. If it dissolves in water, it is hydrophilic, if not, it's hydrophobic. And, basically, intramolecular forces are ones that connect the atoms within the molecule together. With this, you should be able to figure it out yourself. Also, I recommend asking for help nicely, rather than "challenging" people to answer such a lengthy problem. Just my opinion though.

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