Chemistry Glossary

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  • Created by: Isabelle
  • Created on: 09-03-14 13:05
Acid
A species that is a proton donor
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Activation Energy
The minimum energy required to start a reaction by the breaking of the bonds
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Addition Polymer
A very long molecular chain, formed by repeated addition reactions of many unsaturated alkene molecules (monomers)
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Addition Polymerisation
The process in which unsaturated alkene molecules (monomers) add on to a growing polymer chain one at a time to form a very long saturated molecular chain (the addition polymer)
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Addition Reaction
A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule
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Adsorption
The process that occurs when a gas, liquid or solute is held to the surface of a solid or, more rarely, a liquid
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Alicyclic Hydrocarbon
A hydrocarbon with carbon atoms joined together in a ring structure
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Aliphatic Hydrocarbon
A hydrocarbon with carbon atoms joined together in straight or branched chains
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Alkali
A type of base that dissolves in water forming hydroxide ions, OH- (aq) ions
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Alkanes
The homologous series with the general formula CnH2n+2
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Alkyl Group
An alkane with a hydrogen atom removed, e.g. CH3, C2H5; alkyl groups are often shown as 'R'
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Amount of Substance
The quantity whose unit is the mole. Chemists use 'amount of substance' as a means of counting atoms
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Anhydrous
A substance containing no water molecules
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Anion
A negatively charged ion
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Atom Economy
Atom Economy= molecular mass of the desired product divided by the sum of molecular masses of all products all multiplied by 100
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Atomic Orbital
A region within an atom that can hold up to two electrons, with opposite spins
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Atomic (proton) Number
The number of protons in the nucleus of an atom
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Average Bond Enthalpy
The average enthalpy change that takes place when breaking by homolytic fission 1 mol of a given type of bond in the molecules of a gaseous species
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Avogadro Constant, NA
The number of atoms per mole of the carbon-12 isotope (6.02 × 10
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Other cards in this set

Card 2

Front

The minimum energy required to start a reaction by the breaking of the bonds

Back

Activation Energy

Card 3

Front

A very long molecular chain, formed by repeated addition reactions of many unsaturated alkene molecules (monomers)

Back

Preview of the back of card 3

Card 4

Front

The process in which unsaturated alkene molecules (monomers) add on to a growing polymer chain one at a time to form a very long saturated molecular chain (the addition polymer)

Back

Preview of the back of card 4

Card 5

Front

A reaction in which a reactant is added to an unsaturated molecule to make a saturated molecule

Back

Preview of the back of card 5
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