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A catalyst that exists in the same phase (solid, liquid or gas) as the reactants. The process is called Homogeneous Catalysis.

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Greenhouse Effect

Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.

Do you know: some mosquitoes bite people because of their clothes

If you have ever been bitten by a mosquito, someone nearby surely gave you an explanation of why the nasty insect decided to spoil your day. Maybe they told you that you smelt good, or you had a certain type of blood or that in that shirt you looked like a potential victim.

Chemical Periodicity

The variations in properties of elements with their position in the periodic table.

Atomic Orbital

Region or volume in space in which the probability of finding electrons is highest.

Evaporization

Vaporization of a liquid below its boiling point.

Electrochemistry

Study of chemical changes produced by electrical current and the production of electricity by chemical reactions.

Dissociation Constant

Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

Fast Neutron

A neutron ejected at high kinetic energy in a nuclear reaction.

Leclanche Cell

A common type of dry cell.

Law of Conservation of Matter

There is no detectable change in the quantity of matter during an ordinary chemical reaction.