15159696
Description
Flashcards by Sean Sacriz, updated more than 1 year ago
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Created by Sean Sacriz
about 6 years ago
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| Question | Answer |
| Difference between pure and impure substances? | Pure substances - made of one type of particle Impure substances - made up of a mixture of two or more types of particles |
| Definition of solute? | The substance dissolved in another substance. |
| Definition of solvent? | The substance which dissolves another substance. |
| Definition of solution? | A mixture where a substance is dissolved in another. |
| Characteristics of a solution? | It is clear, and homogeneous. Can be coloured or colourless. |
| Importance of water for life? | It dissolves chemicals that carry out reactions, so they can move quickly. |
| Definition of dilute solution? | Little solute dissolved in solvent. |
| Definition of concentrated solution? | Large amount of solute dissolved in solvent. |
| Definition of saturated solution? | Solution is so concentrated that no more solute can be dissolved in solute. |
| Definition of suspension? | Mixture where a substance(dispersed phase) is spread, but not dissolved, in another substance(dispersion medium). |
| Example of solid/liquid suspension? | Sand in water. |
| Example of solid/gas suspension? | Dust in air. |
| Example of liquid/liquid suspension? | Oil and water. |
| Definition of colloid? | Microscopic particles(dispersed phase) spread, but not dissolved, in another substance(dispersion medium). |
| Definition and example of emulsion? | Liquid/liquid colloid (e.g. mayonnaise) |
| Definition and example of foam? | Gas/liquid colloid (e.g. whipped cream) |
| Definition and example of gel? | Liquid/solid colloid(e.g. jelly) |
| Definition and example of sol? | Solid/liquid colloid(e.g. blood) |
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