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A favourable interaction of two electrons with opposite m , values in the same orbital.

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All Chemicals - Chemical Glossary

The Chemical Glossary currently has 651 chemical entries. You may search the Chemical Glossary by entering the keyword in the search box or by browsing the entire chemical glossary by letter in alphabetical order.

Alums

Hydrated sulfates of the general formula M+M3+(SO4)2.12H2).

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Aldehyde

Compound in which an alkyl or aryl group and a hydrogen atom are attached to a carbonyl group and a hydrogen atom are attached to a carbonyl group, general formula, O-R-C-H

 

Density

Density is the ratio b/w Mass and Volume: D=M/V

Bond Order

Half the numbers of electrons in bonding orbitals minus half the number of electrons in antibonding orbitals. Bond order gives an indication to the stability of a bond. Also defined as the difference between the number of bonding electrons and antibonding electrons divided by two.

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.

Boiling Point

The temperature at which the vapor pressure of a liquid is equal to the applied pressure, also the condensation point

Heteronuclear

Consisting of different elements.

Covalent Compounds

Compounds containing predominantly covalent bonds.