biology
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14 terms
Terms | Definitions |
|---|---|
 polar molecule | molecules with an unequal distribuation of electrical charges |
| hydrogen bonds | a weak chemical bond attraction between polar molecules |
| acids | compounds that form hydrogen ions when dissolved in water |
| element | a pure substance made of only one kind of atom |
| adhesion | an attraction between different subtances |
| ionic bonds | an atom or molecule that has gained or lost one or more electrons |
| solution | a mixture in which one or more subtances are evenly distributed in another substance |
| molecule | group of atoms held together by a covalent bond |
| capillary actions | water molecules moving upward through a narrow tube |
| compound | a substance made of joined atoms or 2 or more different elements |
| aqueos | a solution that dissolves a substance |
| surface tension | bond (attraction) between water molecules |
| cohesion | an attraction between substances f the same kind |
| bases | compounds that reduce the concentration of hydrogen ions in a solution |
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