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