Diagram that shows equilibrium temperature-pressure relationships for different phases of a substance.
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- Features of the Scanning Tunneling Microscope
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Isomers that result from the interchange of ions inside and outside the coordination sphere.
Beginning in the third energy level, aset of five degenerate orbitals per energy level, higher in energy than s and p orbitals of the same energy level.
Isomers of crystalline complexes that differ in whether water is present inside or outside the coordination sphere.
A reaction that, once initiated, sustains itself and expands. This is a reaction in which reactive species, such as radicals, are produced in more than one step. These reactive species, radicals, propagate the chain reaction.
A substance that conducts electricity well in a dilute aqueous solution.
An inhibitor, a catalyst that decreases the rate of reaction.
The minimum amount of energy required to remove the most loosely held electron of an isolated gaseous atom or ion.
The mass of one molecule of a nonionic substance in atomic mass units.
A natural deposit containing a mineral of an element to be extracted.
A solution that has been titrated against a primary standard. A standard solution is a secondary standard.
Chemical bonding resulting from the transfer of one or more electrons from one atom or a group of atoms to another.
Electron emitted from the nucleus when a neuton decays to a proton and an electron.
Equilibrium constant for the ionization of a weak electrolyte.
A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.
Method of dating ancient objects by determining the ratio of amounts of mother and daughter nuclides present in an object and relating the ratio to the object?s age via half-life calculations.
Refers to crystals having the same atomic arrangement.
Two peaks or bands of about equal intensity appearing close together on a spectrogram.
Absolute Entropy (of a substance)
The increase in the entropy of a substance as it goes from a perfectly ordered crystalline form at 0 °K (where its entropy is zero) to the temperature in question.
Entropy is a measure of the “dilution” of thermal energy.
Rate of Reaction
Change in the concentration of a reactant or product per unit time.
A theory, that attempts to explain macroscopic observations on gases in microscopic observations on gases in microscopic observations on gases in microscopic or molecular terms.