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20 Cards in this Set
- Front
- Back
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Properties of water are caused by
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Hydrogen bonds
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Surface Tension
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the inward force, or pull, that tends to minimize the surface area of a liquid
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Surfactant
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any substance that breaks surface tension
(ex: Soap) |
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Low Vapor Pressure
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results from molecules escaping from the surface of the liquid and entering into the vapor phase
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Water has a ________ structure and a ________ ________ bond.
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Bent structure,
Polar Covalent bond |
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Why is water the universal solvent?
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Dissolves almost anything it comes into contact with
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Solvent
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dissolving medium
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Solute
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dissolved particles
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Polar dissolves _______
Nonpolar dissolves ________ |
Like dissolves like.
Polar ---> Polar Nonpolar ---> Nonpolar |
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Electrolytes
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Ionic compound that conducts an electric current when it is in an aqueous solution or in the molten state
Conduction of electricity requires ions |
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Strong electrolytes
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where large portions of solute exists as ions
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Weak electrolytes
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conducts electricity poorly (low numbers of solutes exist as ions)
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Solutions
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homogeneous mixtures
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Suspensions
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a mixture from which particles settle out upon standing
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Colloids
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heterogeneous mixture containing particles that are smaller than those in suspensions and larger than those in solutions
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Tyndall Effect
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scattering of visible light by colloidal particles
(ex: headlights) |
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Brownian Motion
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chaotic movement of colloidal particles, caused by the collisions of their particles
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Coagulation
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clumping together
(ex: blood) |
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Emulsions
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colloidal dispersion of a liquid in a liquid
(add a substance to make them mix) |
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Emulsifying Agent
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Allows the formation of colloidal dispersion between liquids that do not ordinarily mix
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