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

 

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Activation Energy

Amount of energy that must be absorbed by reactants in their ground states to reach the transition state so that a reaction can occur. In other words, activation energy is the minimum energy required for a chemical reaction to occur.

Weak Field Ligand

A Ligand that exerts a weak crystal or ligand field and ge- nerally forms high spin complexes with metals.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Equilibrium or Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, the state of a system when neither forward or reverse reaction is thermodynamically favored.

Half-Cell

Compartment in which the oxidation or reduction half-reaction occurs in a voltaic cell.

Binary Compound

A compound consisting of two elements, may be ionic or covalent.

Nucleus

The very small, very dense, positively charged center of an atom containing protons and neutrons, as well as other subatomic particles.

History of fireworks

There is an assumption that the history of fireworks started in China, about 2000 years ago. It is possible that the Chinese accidentally discovered explosions by burning bamboo canes.

Alkynes

Unsaturated hydrocarbons that contain one or more carbon-carbon triple bonds.

Crystalline Solid

A solid characterized by a regular, ordered arrangement of particles.