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Chem. Vocab. 326-350
| Question | Answer |
|---|---|
| Oxidation- reduction reaction | Any chemical process in which there is a transfer of electrons, either partial or complete |
| Oxide | A compound usually consisting of oxygen and one other element |
| Oxidizing agent | The atom or ion which takes up electrons during an oxidation |
| Paramagnetism | The property of a substance whereby it is attracted into a magnetic field |
| Paris green | A compound of copper and arsenic |
| Partial pressure | The pressure each gas of a gaseous mixture would exert if it alone were present |
| Peptide | A compound consisting of amino acid groups joined by the peptide linkage |
| Peptide linkage | The (picture) linkage |
| Period | A horizontal row of elements in the periodic table |
| Periodic property | A property of elements that appears periodically when the elements are arragned in order of their atomic numbers |
| Periodic table | A tabular arrangement of the chemical elements based on their atomic structure |
| Petroleum | A liquid mixture of hydrocarbons obtained from beneath the surface of the ground |
| pH | Hydromium ion index; the common logorithm of the reciprocat of the hydronium-ion concentration |
| pH meter | An electronic device for the determination of pH values in solutions |
| pH scale | A logarithmic scale expressing degree of acidity or basicity |
| Photon | A quantum (unit) of electromagnetic radiation energy |
| Photoelectric energy | Ejection of electrons from a surface exposed to light |
| Photosynthesis | The process by which plants produce carbohydrates and oxygen with the aid of sunlight |
| Physical change | A change in which the identifying properties of a substance remain unchanged |
| Physical properties | Those properties that can be determined without causing a change in the indentity of a material |
| Plastic | A natural or synthetic material that can be shaped while soft into a required form and then hardened to produce a durable finished article |
| Polar covalent bond | A covalent bond in which there is an unequal attraction for the shared electrons and a resulting unbalanced distribution of charge |
| Polymer | A compound formed by two or more simpler molcules or radicals with repeating structured units |
| Precipitate | A substance, usually a solid, which seperates from a solution as a result of some physical or chemical change |
| Pressure, critical | The pressure required to liquefy a gas at its critical temperature |
Created by:
nissaAPworld
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