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12 Cards in this Set
- Front
- Back
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What is the definition of diffusion Explain it |
Is the movement of particles form an area of high concentration to an area of low concentration. - It is a process during which one substance spreads out through another. It occurs in liquids and gases. - Diffusion occurs until all particles are evenly spread. - Diffusion occurs faster in warmer temperatures as the particles are moving faster. |
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What is the definition of dissolving? |
Is the process of adding a solute to a solvent and eventually having the solute mixing up with the liquid. This makes a solution. (Solutions can be with a solid an a liquid or two liquids.) |
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Filtration |
Used for separating an soluble solid from liquid. (Eg. A mixture of sand and water) |
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Decanting |
Used for separating a mixture of substances with different densities. The less dense one is poured of the top. (Eg. Separating sand and water) Note: Not as accurate as filtration. |
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Magnetic Properties |
Used for separating a magnetic substance from a non-magnetic one. (Eg. Iron filings from sawdust.) |
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Evaporation |
Used for separating a soluble solid solid from a liquid. (Eg. Copper sulfate crystals from copper sulfate solution.) Note: Slow evaporation to leave crystals can be called "Crystallization" |
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Chromatography |
Used to separate dissolved substances that have different colors. Note: Some of the substances dissolve in the solvent better than others, so they travel further up the paper. |
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Simple Distillation |
Used to separate a liquid from a solution. (Liquid evaporates from the solution, but is then cooled and condensed into a separate container.) |
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Fractional Distillation |
Used to separate two or more liquids from each other. (Eg. Meths can be separated from a mixture with water by fractional distillation.) Note: The two liquids most have different boiling points. |
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Centrifugation |
Used to concentrate a solid suspended in a liquid would then decant off liquid. (Eg. Cells in blood) |
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What is the angle of incidence equal to...? |
Angle of incidence is equal to angle of reflection. |
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Light Ray |
Is a line or curve that is perpendicular to the light wave fronts. |
