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Chp 20 Physical Sci
Vocab for chapter 20 BJU Physical Science
| Question | Answer |
|---|---|
| Two phase mixtures that consist of a solid in a liquid. They are somewhat rigid. | gels |
| Two phase mixtures that consist of a solid in a liquid, but the mixture is more like a liquid or a viscous liquid. Think thick liquids. | sols |
| Mixtures that contain 2 or more distinct liquid phases. These phases cannot be blended into one another. | Emulsions |
| Means cannot be blended into one another | Immiscible |
| When a gas is whipped into a liquid so that it makes a mixture of tiny bubbles with the liquid you get this. | foam |
| Tiny solid particles or liquid drops that are dispersed in a gas form an ----. | aerosol |
| Metal mixtures are called and are metal solutions. | Alloys |
| This happens when particles between 1nm and 1um are even mixed and do not settle out. | colloidal dispersion |
| These are fluid mixtures whose dispersed particles, whether solid or liquid, are larger than about 1um in size. The particles settle out over time. | Suspensions |
| The unbroken phase of a mixture in which the other phases are mixed. | continuous phase |
| The broken phase in a mixture. | dispersed phase |
| An example of an emulsion | mayonnaise |
| An example of a foam | shaving cream |
| An example of a colloid | fog |
| An example of a suspension | blood |
| This is the name for a way to tell colloids and solutions apart using a beam of light. | Tyndall effect |
| Can mixtures or pure substances be separated by using their physical properties? | mixtures |
| These are homogeneous mixtures of pure substances in a single phase. | solutions |
| In a solution, the substance that does not dissolve or of which you have the most is called---. | solvent |
| In a solution the substance that is dissolved or of which you have the least is called the---. | solute |
| Solutes can or cannot be filtered out of a solution? | cannot |
| True solutions are ___ and do NOT scatter light as in the Tyndall effect. | transparent |
| Components of a solution are or are not chemically combined? | NOT |
| This is called the universal solvent. | Water |
| Tiny solid particles or liquid drops that are dispersed in a gas form ____. | aersol |
| Solutions are ______ mixtures. | homogenous |
| Solutes CANNOT be _____ out of a solution. | filtered |
| Solutes Do or DO NOT settle out of a solution. | DO NOT |
| Solid Solutions are often a mixture of metals called ------. | Alloys |
| When solute ions are pulled apart by the solvent it is called---. | dissociation |
| The surrounding of a solute particle by solvent molecules is called ---. | solvation |
| The surrounding of a solute particle by water is called ---. | hydration |
| A substance is __________ when it CAN be dissolved by a solvent. | soluble |
| Like dissolves ______ | Like |
| Liquids that can freely mix in any proportion are said to be _____. | Miscible |
| ________ is the maximum amount of solute that will dissolve in a given amount of solute at a given temperature. | solubility |
| Solubility is usually expressed in ___. | grams / 100 ml of solvent |
| Solutes that cannot mix in certain solvents are said to be ____. | insoluble |
| Insoluble liquids are ____. | immiscible |
| Immiscible means not ____. | mixable |
| An example of immiscible liquids. | Italian dressing |
| Factors that affect solubility are temperature and | pressure of gases. |
| When a solution holds all the solute it can normally it is said to be | saturated |
| When a solution holds MORE than it should at a certain temperature it is said to be | supersaturated |
| When a solution can still hold more solute it is | unsaturated |
| These increase the rate of solution. | temperature, stirring, surface area |
| This is the amount of solute in a certain amount of solvent or solution | Concentration |
| This is the mass in grams of solute per 100 g of solution | percentage by mass |
| grams of solute + grams of solvent = | grams of solution |
| Avagadro's number | 6.022 * 10^23 |
| 6.022* 10^23 atoms of an element makes a _____ | mole |
| Mols of solute per liter of solution | molarity |
Created by:
kdcribb
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