acid - CORRECT ANSWER-A species that is a proton donor.
activation energy - CORRECT ANSWER-The minimum amount of kinetic energy
that particles need to have in order to react when they collide
addition polymer - CORRECT ANSWER-A very long molecular chain formed by
repeated addition reactions of many unsaturated alkene molecules (monomers).
addition polymerisation - CORRECT ANSWER-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).
addition reaction - CORRECT ANSWER-A reaction in which a reactant is added to
an unsaturated molecule to make a saturated molecule.
,adsorption - CORRECT ANSWER-The process that occurs when a gas, liquid or
solute is held to the surface of a solid or, more rarely, a liquid.
alicyclic hydrocarbon - CORRECT ANSWER-A hydrocarbon with carbon atoms
joined together in a ring structure.
aliphatic hydrocarbon - CORRECT ANSWER-A hydrocarbon with carbon atoms
joined together in straight or branched chains.
alkali - CORRECT ANSWER-A type of base that dissolves in water forming
hydroxide ions, OH- (aq) ions.
alkanes - CORRECT ANSWER-The homologous series with the general formula:
CnH2n+2.
alkyl group - CORRECT ANSWER-An alkane with a hydrogen atom removed, e.g.
CH3, C2H5; alkyl groups are often shown as 'R'.
amount of substance - CORRECT ANSWER-The quantity whose unit of the mole.
Chemists use 'amount of substance' as a means of counting atoms.
anhydrous - CORRECT ANSWER-A substance that contains no water molecules.
anion - CORRECT ANSWER-A negatively charged ion.
, atom economy - CORRECT ANSWER-atom economy = molecular mass of the
desired product ×100 sum of molecular masses of all products
atomic orbital - CORRECT ANSWER-A region within an atom that can hold up to
two electrons, with opposite spins.
atomic (proton) number - CORRECT ANSWER-The number of protons in the
nucleus of an atom
acid - CORRECT ANSWER-A species that is a proton donor.
activation energy - CORRECT ANSWER-The minimum energy required to start a
reaction by the breaking of bonds.
addition polymer - CORRECT ANSWER-A very long molecular chain formed by
repeated addition reactions of many unsaturated alkene molecules (monomers).
addition polymerisation - CORRECT ANSWER-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).
addition reaction - CORRECT ANSWER-A reaction in which a reactant is added to
an unsaturated molecule to make a saturated molecule.
activation energy - CORRECT ANSWER-The minimum amount of kinetic energy
that particles need to have in order to react when they collide
addition polymer - CORRECT ANSWER-A very long molecular chain formed by
repeated addition reactions of many unsaturated alkene molecules (monomers).
addition polymerisation - CORRECT ANSWER-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).
addition reaction - CORRECT ANSWER-A reaction in which a reactant is added to
an unsaturated molecule to make a saturated molecule.
,adsorption - CORRECT ANSWER-The process that occurs when a gas, liquid or
solute is held to the surface of a solid or, more rarely, a liquid.
alicyclic hydrocarbon - CORRECT ANSWER-A hydrocarbon with carbon atoms
joined together in a ring structure.
aliphatic hydrocarbon - CORRECT ANSWER-A hydrocarbon with carbon atoms
joined together in straight or branched chains.
alkali - CORRECT ANSWER-A type of base that dissolves in water forming
hydroxide ions, OH- (aq) ions.
alkanes - CORRECT ANSWER-The homologous series with the general formula:
CnH2n+2.
alkyl group - CORRECT ANSWER-An alkane with a hydrogen atom removed, e.g.
CH3, C2H5; alkyl groups are often shown as 'R'.
amount of substance - CORRECT ANSWER-The quantity whose unit of the mole.
Chemists use 'amount of substance' as a means of counting atoms.
anhydrous - CORRECT ANSWER-A substance that contains no water molecules.
anion - CORRECT ANSWER-A negatively charged ion.
, atom economy - CORRECT ANSWER-atom economy = molecular mass of the
desired product ×100 sum of molecular masses of all products
atomic orbital - CORRECT ANSWER-A region within an atom that can hold up to
two electrons, with opposite spins.
atomic (proton) number - CORRECT ANSWER-The number of protons in the
nucleus of an atom
acid - CORRECT ANSWER-A species that is a proton donor.
activation energy - CORRECT ANSWER-The minimum energy required to start a
reaction by the breaking of bonds.
addition polymer - CORRECT ANSWER-A very long molecular chain formed by
repeated addition reactions of many unsaturated alkene molecules (monomers).
addition polymerisation - CORRECT ANSWER-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).
addition reaction - CORRECT ANSWER-A reaction in which a reactant is added to
an unsaturated molecule to make a saturated molecule.
