A LEVEL CHEMISTRY PAPER 2
A ketone
- answersFehlings solution stays blue when warmed with...
Activation energy
- answersThe minimum amount of energy a particle requires for a reaction to take place
Aldehyde not ketone
- answersProduces a silver mirror when warmed with tolled reagent
Alkanes
- answersSaturated hydrocarbons
Alkenes
- answersUnsaturated hydrocarbons
An aldehyde
- answersTurns fehlings solution from blue to red when warmed with...
Bent/ v shaped
- answers2 lone pairs, 2 bonding pairs, 104.5 bond angle
Biofuel
- answersFuel that's made from biological material that's recently died
Calcium oxide or carbonate
- answersUsed to neutralise sulphur dioxide in flue gases
Calcium Sulfate
- answersThe salt made when calcium carbonate/oxide reacts with sulphur dioxide
, Carbonate
- answersProduce CO2 when hydrochloric acid added
Catalyst
- answersA substance that increases the rate reaction without being chemically
changed or used up in the process
Catalyst for ethanol steam hydration production
- answersPhosphoric acid catalyst
Catalytic cracking
- answersForm of cracking that takes place at high temperature and slight pressure with
a zeolite catalyst.
Collision theory
- answersFor a reaction to take place particles have to collide with the right orientation
and sufficient energy
Conditions for fermentation of glucose
- answersYeast anaerobic conditions, 30-40 degrees c
Conditions for steam hydration ethanol production
- answersHydration of ethene by steam at 300 degrees, pressure 60atm
Dative covalent bond
- answersA bond of shared electrons where both electrons are supplied from one of the
atoms
Electronegativity
- answersThe power of an atom to attract the pair of electrons in a covalent bond
Electrophiles
- answersElectron pair acceptors, attracted to electrons e.g H+
Enthalpy change
- answersThe overall temperature change at a constant pressure of a reaction
Fingerprint region
- answersPart of an infrared spectrum unique to that particular compound
Fossil fuels used for machinery for transport, harvesting
- answersReason why bioethanol is not fully carbon neutral
Functional group isomers
- answersSame atoms arranged into different functional groups e.g cyclohexane and
hexene
A ketone
- answersFehlings solution stays blue when warmed with...
Activation energy
- answersThe minimum amount of energy a particle requires for a reaction to take place
Aldehyde not ketone
- answersProduces a silver mirror when warmed with tolled reagent
Alkanes
- answersSaturated hydrocarbons
Alkenes
- answersUnsaturated hydrocarbons
An aldehyde
- answersTurns fehlings solution from blue to red when warmed with...
Bent/ v shaped
- answers2 lone pairs, 2 bonding pairs, 104.5 bond angle
Biofuel
- answersFuel that's made from biological material that's recently died
Calcium oxide or carbonate
- answersUsed to neutralise sulphur dioxide in flue gases
Calcium Sulfate
- answersThe salt made when calcium carbonate/oxide reacts with sulphur dioxide
, Carbonate
- answersProduce CO2 when hydrochloric acid added
Catalyst
- answersA substance that increases the rate reaction without being chemically
changed or used up in the process
Catalyst for ethanol steam hydration production
- answersPhosphoric acid catalyst
Catalytic cracking
- answersForm of cracking that takes place at high temperature and slight pressure with
a zeolite catalyst.
Collision theory
- answersFor a reaction to take place particles have to collide with the right orientation
and sufficient energy
Conditions for fermentation of glucose
- answersYeast anaerobic conditions, 30-40 degrees c
Conditions for steam hydration ethanol production
- answersHydration of ethene by steam at 300 degrees, pressure 60atm
Dative covalent bond
- answersA bond of shared electrons where both electrons are supplied from one of the
atoms
Electronegativity
- answersThe power of an atom to attract the pair of electrons in a covalent bond
Electrophiles
- answersElectron pair acceptors, attracted to electrons e.g H+
Enthalpy change
- answersThe overall temperature change at a constant pressure of a reaction
Fingerprint region
- answersPart of an infrared spectrum unique to that particular compound
Fossil fuels used for machinery for transport, harvesting
- answersReason why bioethanol is not fully carbon neutral
Functional group isomers
- answersSame atoms arranged into different functional groups e.g cyclohexane and
hexene
