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The energy stored in the nucleus of an atom and released through fission, fusion, or radioactivity. In these processes a small amount of mass is converted to energy according to the relationship E = mc2, where E is energy, m is mass, and c is the speed of light.

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Sigma Bonds

Bonds resulting from the head-on overlap of atomic orbitals, in which the region of electron sharing is along and (cylindrically) symmetrical to the imaginary line connecting the bonded atoms.

Hydrolysis Constant

An equilibrium constant for a hydrolysis reaction.

Eluant or eluent

The solvent used in the process of elution, as in liquid chromatography.

 

Conjugated Double Bonds

Double bonds that are separated from each other by one single bond -C=C-C=C-.

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Dextrorotatory

Refers to an optically active substance that rotates the plane of plane polarized light clockwise, also called dextro.

Three ways to make patina at home

The first way is ammonia patination. To do this, take a plastic container. Put a couple of paper or ordinary towels at the bottom. Moisten them with ammonia. Then sprinkle with large table salt.

Low Spin Complex

Crystal field designation for an inner orbital complex, contains electrons paired t2g orbitals before eg orbitals are occupied in octahedral complexes.

Polymorphous

Refers to substances that crystallize in more than one crystalline arrangement.

yield

The quantity of product formed by the interaction of two or more substances, generally expressed as a percentage of the quantity obtained to that theoretically obtainable.