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An Acid that can form two or more hydronium ions per molecule, often a least one step of ionization is weak.

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Effective Collisons

Collision between molecules resulting in a reaction, one in which the molecules collide with proper relative orientations and sufficient energy to react.

 

Wild patina, is it so bad?

Usually this kind of patina appears on monuments. The most striking example is the Statue of Liberty in New York.

Biodegradability

The ability of a substance to be broken down into simpler substances by bacteria.

 

Essential Oil

A plant extract that has a distinctive odour or flavour.

Amide

Compound containing the O-C-N group.Compound that can be considered a derivative of ammonia in which one or more hydrogens are replaced by a alkyl or aryl groups.

 

Ionization Constant

Equilibrium constant for the ionization of a weak electrolyte.

Pairing Energy

Energy required to pair two electrons in the same orbital.

Capillary

A tube having a very small inside diameter.

Specific Rate Constant

An experimentally determined (proportionality) constant, which is different for different reactions and which changes only with temperature, k in the rate-law expression: Rate = k [A] x [B]v.

20 interesting chemistry facts

20 interesting chemistry facts.