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24 Cards in this Set
- Front
- Back
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What is a Universal Solvent
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It's here many substances can be dissolved in water
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How would you speed up the dissolving process of a frozen good?
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You could stir it, heat it
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"Like dissolves Like" what does this mean in the sense of polar and nonpolar
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polar molecules dissolve polar molecule
Nonpolar dissolves nonpolar |
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A heterogeneous is what?
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This type of mixture does not have a fized composition. The amount of each substance in different samples of a heterogenous mixture varies, just as the amount of fruit varies in a spoonfull of fruit salad.
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A homogeneous mixture is what?
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Looks uniform even when you examine it under a microscope because the individual components of the mixture are to small to be seen.
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Suspension
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a mixture in whichparticlesof a material are more of less evenly dispersed throughout a liquid or gas
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Colloid
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a mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid, solid, or gas.
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Emulsion
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Mayonnaise is and emulsion, it is a colloidin which liquids that usually do not mix are spread throughout each other. The particles are so small that it may appear to be uniform, but it's not
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Solutions
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A homogeneous mixture throughout which two or more substances are uniformly dispersed
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Solute
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In a solution, the substance that dissolves in the solvent
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Solvent
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In a solution, the substance in which the solute dissolves
ex: water |
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Miscible
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2 or more liquids that form a single layer when mixed
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Name a way to seperate a miscible liquid
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distillation
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Alloy
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a solid or a liquid mixture of two or more metals
ex: brass, bronze, air |
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Polar
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A polar molecule has partially charged positive and negative areas, which are indicated by S+ and S-
example: water |
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Hydrogen Bond
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The intermolecular force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared electrons of another molecule
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Nonpolar
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Describes a molecule in which the centers of positive and negative charges are not seperated
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Solubility
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The solubility of a substance is the maximum mass of a solute that can dissolve in 100g of solvent at a certain temperature and standard atmospheric pressure
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Concentration
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the amount of a particular substance in a given quantity of a mizure, solution, or ore
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Saturated Solutions
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A solution that cannot dissolve any more solute under the given conditions
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Unsaturated Solutions
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A solution that contains less solute than a saturated solution does and that is able to dissolve additional solute
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Supersaturated Solution
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A solution that holds more dissolved solute than is required to reach equilibrium at a given temperature
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A solution is _______________ as long as more solute can dissolve in it
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unsaturated
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Supersaturated Solution
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A solution that holds more solute than it normally would at a cooler temperature
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