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<strong><font face="Verdana, Arial, Helvetica, sans-serif" color="#FFFFFF" size="7">LIGHT
ME UP!</font></strong>
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<font face="Verdana, Arial, Helvetica, sans-serif" color="#FFFFFF" size="7">What
is an electrolyte? </font>
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<font face="Verdana, Arial, Helvetica, sans-serif" color="#FFFFFF" size="7">Page
3</font>
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<strong><font face="Verdana" size="6">DEFINITION: Electrolytes are
solutes that conduct electricity when dissolved to produce an aqueous
solution.</font></strong>
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12. From the solutes tested, what type of solutes are electrolytes?
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<font size="6" face="Verdana">Electricity is the flow of electrons (e-).
Given an electrolyte "AB" dissolving in water, the preparation of this
solution may be depicted as follows: </font>
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Run the model first. You should see that the salt crystal does not change
shape. Then use the following button to add water to the salt crystal:<br><br><input name="button name" script="script:mw2d:1:load saltandwater.mml;run;" value="Add water" alt="Add water molecules" type="submit"><br><br>Use
the following button to return to the starting salt crystal:<br><br><input name="button name" script="script:mw2d:1:load saltonly.mml;run;" value="Salt crystal" alt="Salt crystal" type="submit"><br><br>Purple
atoms = A<sup>+</sup>; green atoms = B<sup>-</sup>
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13. Explain why the electrolyte may be expressed as AB?
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14. Why do A<sup>+</sup> and B<sup>-</sup> carry charges, include why
these ions carry those specific charges.
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15. If AB is NaCl, which spheres represent sodium ions and which
represent chloride ions? How did you determine this?
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16. Describe how the H<sub>2</sub>O molecules are represented in the
model.
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17. Based on the model, describe how the water molecules align
themselves in relation to the ions and explain why this occurs.
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18. By using what you saw in the model, give a detailed description of
what happens when a substance "dissolves"?
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