Term
| are heterogeneous mixtures solutions? |
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Definition
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Term
| how many substances can be identified in a heterogeneous mixture? |
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Definition
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Term
| a mixture from which some of the particles settle out slowly upon standing |
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Definition
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Term
| what is the typical diamter of particles in a suspension? |
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Definition
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Term
| how does the role of gravity change between a solution and a suspension? |
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Definition
| because of the bigger particle size in suspensions, gravity plays a bigger role in suspensions |
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Term
| what will pass through a filter when a suspension containing water is poured? |
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Definition
| only the water wll pass through, suspension particles are too big |
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Term
| a mixture whose particles are intermediate in size between those of a suspension and a solution |
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Definition
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Term
| what states can a dispersion medium be in? |
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Definition
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Term
| what are three examples of colloids? |
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Definition
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Term
| how can colloids be like suspensions? |
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Definition
| can be cloudy or milky when concentrated |
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Term
| how can colloids be like solutions? |
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Definition
| they can be clear when dilute |
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Term
| what is the diamter of colloid particles like relative to solution and sspension particles? |
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Definition
| bigger than solution particles and smaller than suspension particles |
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Term
| can colloid particles pass through a filter? |
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Definition
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Term
| do colloid particles settle with standing time? |
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Definition
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Term
| can colloid particles coagulate? |
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Definition
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Term
| can colloid particles emulsify or be made stable |
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Definition
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Term
| scattering of light by particles in a colloid or suspension, which causes a beam of light to become visible |
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Definition
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Term
| other than colloids, what exhibits the tyndall effect? |
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Definition
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Term
| why do solutions not exhibit the tyndall effect? |
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Definition
| the particles are too small |
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Term
| the chaotic movement of colloidal particles, caused by collision with particles of the solvent in which they are dispersed |
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Definition
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Term
| what helps colloidal particles from settling? |
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Definition
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Term
| what causes colloidal particles to coagulate? |
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Definition
| particles absorbing a positive or negative charge |
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Term
| what will a large aggregate in a colloid do? |
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Definition
| precipitate from the dispersion |
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Term
| the colloidal dispersion of one liquid in another |
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Definition
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Term
| what are two emulsifying agents? |
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Definition
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Term
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Definition
| allow colloid dispersion between liquids that do not normally mix |
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