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Page 4 Formation of water shells around ions
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In solution, water molecules form a "shell" around ions. This model illustrates how ions solvated by water molecules move. Note, however, this 2D model does not depict the real shell structure, which in reality is 3D.
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<font size="8">Formation of Water Shells Around Ions</font><br>Page 4 of
6
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Charge on the purple ion
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Execute MW script
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Charge on the green ion
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Execute MW script
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org.concord.modeler.PageButton
Cool
Raised Bevel
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Cool the system down
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Show Charge
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Show Charge
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Take a snapshot
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Take a snapshot
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Water is a great solvent, but substances that water has the ability to
dissolve must be either polar or ionic. The polar water molecules attract
charged particles and push out non-charged particles. Water molecules are
attracted to other water molecules, to other polar molecules, and to ionic
substances.
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Pg 4 Formation of water shells around ions$0.mmlfalsetrue
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14. Water would NOT be attracted to which of the following?
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Itself
Polar covalent compounds
Nonpolar covalent compounds
Ionic substances
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15. Run the model as it was originally set and describe your observations
regarding how the particles interact.
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16. Using the sliders above the model, give the purple sphere a positive
charge and the green sphere a negative charge. Run the model again and
describe how the interactions appear to change compared to the original
settings.
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17. Now cool the system and click on "Show Charge." Take a snapshot of
this model and follow the directions given.
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<a href="Pg 3 Dissolving General Rule.cml"><font size="6">Previous</font></a>
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<a href="Pg 5 Dissolving NaCl and AgNO3.cml"><font size="6">Next</font></a>
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<a href="Index Page.cml"><font size="6">Index</font></a>
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