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stack 2
unit 2 topic 3 and vocab water
| word | daf |
|---|---|
| adhesion | the physical or chemical attraction and binding between two different particles or surfaces when they come into contact |
| cohesion | the action or property of like molecules, parts, or people sticking and holding together to form a united whole |
| polar molecule | a structure that has a slightly positive share at one end and a slightly negative charge at the other end |
| hydrogen bond | a weak type of attraction between a slightly positive hydrogen atom in one molecule and a strongly electronegative atom |
| surface tension | the physical property of a liquids surface that makes it behave like a stretched elastic skin, allowing it to resist an external force |
| capillary action | the process where a liquid flows through a narrow space or porous material without the help of external forces like gravity , often moving against it |
| specifically heat capacity | the amount of heat energy required to raise the temperature of a unit mass of a substance by one degree one degree celsius |
| expaansion upon freezing | the rare physical property where a substance increases in volume and becomes less dense as it turns from a liquid into a solid |
| universal solvent | dissolves more substance then any other liquid |
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