Water & pH Vocabulary
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13 terms
Terms | Definitions |
|---|---|
 Adhesion | The joining of different molecules due to attractive forces. |
| Cohesion | The joining of the same molecules due to attractive forces. |
| Polar Molecule | molecule with oppositely charged regions. |
| Hydrogen Bond | weak electrostastic bond formed by the attraction of opposite charges between a hydrogen atom and an oxygen, fluorine, or nitrogen atom. |
| Mixture | combination of two or more different substances in which each substance keeps its individual characteristics; can have a uniform composition(homogeneous) or have distinct areas of substances(heterogeneous). |
| Solution | Hemogeneous mixture formed with a substance(the solute) is dissolved in another substance(the solvent). |
| Solvent | substnce in which another substance is dissolved. |
| Solute | substance dissolved in a solvent. |
| Suspension | to keep from falling or sinking. |
| Acid | substance that releases hydrogen ions(H+) when dissolved in water; an acidic solution has a pH less than 7. |
| Base | Substance that releases hydroxide ions(OH-) when dissolved in water; a basic solutiion has a pH greater than 7. |
| pH | measure of the concentration of hydrogen ions(H+) in a solution. |
| Buffer | Mixture that can react with an acid or a base to mainain the pH within a specific range. |
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