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Chem. Vocab 351-375
| Question | Answer |
|---|---|
| Pressure, equilibrium vapor | The pressure exerted by a vapor in equilibrium with its liquid. |
| Presource, standard | The pressure exerted by a column of mercury exactly 760 mmHg hight at 0 degrees. |
| Principal quantum number | the quantum number designating energy level and electron cloud size. |
| Protolysis | Proton transfer electrons |
| Proton | A positively charged particle found in the nucleus of an atom. It has 1836/1837 of the mass of the simplest type of hydrogen atom. |
| Quantum | A discrete "packet" of energy. |
| Quantum numbers | The numbers that describe the distance from the nucleus, the shape and the position with respect to the 3 axes in space of an orbital, as well as the direction of spin of the electron(s) in each orbital. |
| Radioactive | Having the property of radioactivity. |
| Radioactive decay | A radioactive change in which a nucleus emits a particle and rays, forming a slightly lighter, more stable nucleus. |
| Radioactivity | The spontaneous break down of an unstable atomic nucleus with the emission of particles and rays. |
| Reactant | An element or compound enterlay into a chemical reaction. |
| Reducing agent | The atom or ion that supplies electrons during an oxidation-reduction reaction. |
| Reduction | Any chemical reaction that involves the gain of one or more electrons by an atom or ion. |
| Reversible reaction | A reaction in which the products may react to produce the original reactants. |
| Salt | A compound composed of the positive ions of an aqueous base and the megative ions of an aqueous acid. |
| Saturated | Pertaining to a solution in which the concentration of solute is the maximum possible under existing conditions. |
| Semiconductor | A substance with an electric conductivity between that of a metal and an insulator. |
| Shell | A region about the nucleus of an atom in which electrons move. |
| Significant digits | The reliable digits in a measurement based on the accuracy of the measuring instrument. |
| Single displacement | A reaction im which one element replaces another in a compound. |
| Solid | The phase of matter characterized by definite shape. |
| Solubility | The amount of a solute dissolved in a given amount of solvent at equilibrium, under specific conditions. |
| Solute | The dissolved substance in a solution. |
| Solution | A homogeneous mixture of two or more substances, the composition of which may be varied within definite limits. |
| Solvation | The clustering of solvent particles about the particles of solute. |
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nissaAPworld
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