Chem 2 Tutorial Notes – Flashcards
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forming solute-solvent attractions
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exothermic
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breaking solvent-solvent attractions and breaking solute-solute attractions
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endothermic
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The enthalpy of solution for a solid with ΔH values of approximately equal magnitude for each of the steps involved in the solution formation process is _________ ____________.
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slightly endothermic
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When water molecules cluster around solute particles, the process is called ___________.
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hydration
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The interaction between a polar molecule and an ion in close contact is called an ______ __________ ______________.
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ion-dipole interaction
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The interaction between two polar molecules in close contact is called a __________ __________ _______________.
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dipole-dipole interaction
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The interaction between a molecule containing hydrogen and one containing a highly electronegative element such as oxygen is called ___________ _____________.
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hydrogen bonding
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Which interactions and processes contribute to the dissolution of ionic compounds in water?
Check all that apply.
1.Affinity of oxygen towards cations
2.Ion-dipole interactions
3.Dipole-dipole interactions
4.Hydration
5.Hydrogen bonding
6.Affinity of hydrogen towards anions
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1, 2, 4, 6
