Why is it surprising that water liquid at room temperature?
explain how water dissololve table salt?
explainwhy water doesnt dissolve vegetable oil/
by 
nadia
ANSWERS: 1
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1) not surprising to me 2) an H20 molecule has positive areas (H) and a negative area (0) - salt comes apart into positive ions (Na) and negative ions (Cl) - water molecules surround the positive ion with their negative areas facing it, and other water molecules surround the negative ion with their positive areas facing it 3) oil has no charged areas (and H20 doesn't do van der Waals attraction because it has no huge clouds of electrons), so nothing to attract the H20
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