CHEM 120 James Madison University
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| If two substances mix, what is the solution considered? | Miscible
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| If two substances cannot mix, what is that considered? | Immiscible
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| What happens when an ionic compound is placed in water? | Dipoles of the water molecules attract the ions and pull them apart.
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| What do ionic compounds consist of? | Alternating + and - ions in a 3D crystal lattice
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| Ion-dipole forces | Interactions between ions and dipoles of a polar molecule (like H2O)
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| What kind of molecular compounds form ions when dissolved in water? | Strong acids
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| Do polar compounds dissolve in water? | Yes, because of the dipole dipole attractions with water.
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| Do nonpolar compounds dissolve in water? | They dissolve poorly (because like dissolves like)
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| Saturated | Maximum amount of solute dissolved in solution
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| Unsaturated | Less than maximum amount of solid is dissolved
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| Supersaturated | Unstable- more than maximum dissolved, can form precipitate
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| Dilute | Contains small amount of solute
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| Concentrated | Large amount of solute
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| Concentration | Amount of solute present in a given amount of solvent or solution
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| Solubility of solids/liquids (increases/decreases) with increasing temperature, and (increases/decreases) with increasing pressure? | Increases, unaffected
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| Solubility of gases (increases/decreases) with increasing temperature, and (increases/decreases) with increasing pressure? | Decreases, increases
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| Conductor | Allows electricity to move through it (like metals)
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| Insulator | Does not conduct electricity (wood, glass)
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| Electrolyte | A compound whose aqueous solution will conduct electricity (form ions)
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| What forms ions in water? | Ionic compounds and strong acids
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| Strong electrolyte- Conductivity? Action when dissolved? Example? | Good conductivity, splits into all ions, ex- strong acids
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| Weak electrolyte- Conductivity? Action when dissolved? Example? | Limited conductivity, splits into some ions, ex- weak acids and bases
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| Nonelectrolyte- Conductivity? Action when dissolved? Example? | No conductivity, does not split into ions, ex- molecular compounds (sugar, alcohol, glycerol)
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| Do weak acids dissolve in water? | Yes, completely
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| Colligative property | Property of a substance that depends on how much of a solute is added to it, not on what solute is added.
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| Vapor pressure | How quickly a liquid tends to evaporate
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| Adding a solute (increase/decreases) vapor pressure. | Increases
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| Adding a solute (increases/decreases) boiling point. | Increases
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| Adding a solute (increases/decreases) freezing point. | Decreases
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| Osmotic pressure | Water flows from solvent side to the solution side
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| Osmotic pressure (increases/decreases) with more solute in the solution? | Increases
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To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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