AQA A-LEVEL CHEMISTRY PAPER 2 QUIZZES
WITH COMPLETE SOLUTIONS.
Relative,atomic,mass,(Ar),,,ANS,-
Average,mass,of,an,atom,compared,with,one,twelth,of,the,mass,of,an,atom,of,carbon,12
Electronegativity,,,ANS,-Power,of,an,atom,to,attract,the,pair,of,electrons,in,a,covalent,bond
Standard,enthalpy,of,combustion,,,ANS,-
Enthalpy,change,when,1,mole,of,a,substance,burns,completely,in,oxygen,under,standard,conditions,with,
all,reactants,and,products,being,in,their,standard,state
Standard,enthalpy,of,formation,,,ANS,-
Enthalpy,change,when,1,mole,of,a,compound,is,formed,from,it's,elements,under,standard,conditions,in,th
eir,standard,states
Mean,bond,enthalpy,,,ANS,-
The,average,energy,needed,to,break,a,certain,type,of,bond,over,a,range,of,compounds
Activation,energy,,,ANS,-Minimum,energy,required,for,colliding,molecules,to,react
Maxwell-Boltzmann,distribution,x,and,y,axes,,,ANS,-x:,Energy
y:,fraction/number,of,molecules
What,happens,to,the,Maxwell-Boltzmann,curve,when,temperature,increases,,,ANS,-
Moves,down,and,to,the,right
Rate,of,reaction,,,ANS,-Rate,at,which,product,formed/reactant,used,up
Order,of,reaction,,,ANS,-Power,to,which,the,concentration,of,a,species,is,raised,in,the,rate,equation
, rearrange,k=Ae^-Ea/Rt,,,ANS,-lnk=-Ea/Rt+lnA
Conditions,for,thermal,cracking,,,ANS,-High,temperature,and,high,pressure
Products,of,thermal,cracking,,,ANS,-High,%,of,alkenes
Conditions,for,catalytic,cracking,,,ANS,-
High,temperature,,slight,pressure,and,in,the,presence,of,a,zeolite,catalyst
Products,of,catalytic,cracking,,,ANS,-Motor,fuels,and,aromatic,hydrocarbons
Why,do,we,crack,alkanes?,,,ANS,-Smaller,alkanes/alkenes,generally,more,useful,than,longer,chain,ones
Equation,for,complete,combustion,of,alkanes,,,ANS,-alkane,+,oxygen,>,carbon,dioxide,+,water
Equations,for,incomplete,combustion,of,alkanes,,,ANS,-
alkane,+,oxygen,>,carbon,monoxide/carbon,+,water
Pollutants,produced,by,combustion,engines,,,ANS,-NOx,,CO,,C,and,sunburned,hydrocarbons
Reaction,of,methane,with,chlorine,,,ANS,-I:,Cl2,>,2Cl•
P:,CH4,+,Cl•,>,CH3•,+,Chi
,CH3•,+,Cl2,>,CH3Cl,+,Cl•
T:,CH3•,+,Cl•,>,CH3Cl
2,equations,showing,decomposition,of,the,ozone,,,ANS,-Cl•,+,O3,>,ClO•,+,O2
ClO•,+,O3,>,2O2,+,Cl•
What,types,of,mechanism,do,haloalkanes,undergo?,,,ANS,--
Nucleophilic,substitution,by,aqueous,hydroxide,ions,,cyanide,ions,or,ammonia
WITH COMPLETE SOLUTIONS.
Relative,atomic,mass,(Ar),,,ANS,-
Average,mass,of,an,atom,compared,with,one,twelth,of,the,mass,of,an,atom,of,carbon,12
Electronegativity,,,ANS,-Power,of,an,atom,to,attract,the,pair,of,electrons,in,a,covalent,bond
Standard,enthalpy,of,combustion,,,ANS,-
Enthalpy,change,when,1,mole,of,a,substance,burns,completely,in,oxygen,under,standard,conditions,with,
all,reactants,and,products,being,in,their,standard,state
Standard,enthalpy,of,formation,,,ANS,-
Enthalpy,change,when,1,mole,of,a,compound,is,formed,from,it's,elements,under,standard,conditions,in,th
eir,standard,states
Mean,bond,enthalpy,,,ANS,-
The,average,energy,needed,to,break,a,certain,type,of,bond,over,a,range,of,compounds
Activation,energy,,,ANS,-Minimum,energy,required,for,colliding,molecules,to,react
Maxwell-Boltzmann,distribution,x,and,y,axes,,,ANS,-x:,Energy
y:,fraction/number,of,molecules
What,happens,to,the,Maxwell-Boltzmann,curve,when,temperature,increases,,,ANS,-
Moves,down,and,to,the,right
Rate,of,reaction,,,ANS,-Rate,at,which,product,formed/reactant,used,up
Order,of,reaction,,,ANS,-Power,to,which,the,concentration,of,a,species,is,raised,in,the,rate,equation
, rearrange,k=Ae^-Ea/Rt,,,ANS,-lnk=-Ea/Rt+lnA
Conditions,for,thermal,cracking,,,ANS,-High,temperature,and,high,pressure
Products,of,thermal,cracking,,,ANS,-High,%,of,alkenes
Conditions,for,catalytic,cracking,,,ANS,-
High,temperature,,slight,pressure,and,in,the,presence,of,a,zeolite,catalyst
Products,of,catalytic,cracking,,,ANS,-Motor,fuels,and,aromatic,hydrocarbons
Why,do,we,crack,alkanes?,,,ANS,-Smaller,alkanes/alkenes,generally,more,useful,than,longer,chain,ones
Equation,for,complete,combustion,of,alkanes,,,ANS,-alkane,+,oxygen,>,carbon,dioxide,+,water
Equations,for,incomplete,combustion,of,alkanes,,,ANS,-
alkane,+,oxygen,>,carbon,monoxide/carbon,+,water
Pollutants,produced,by,combustion,engines,,,ANS,-NOx,,CO,,C,and,sunburned,hydrocarbons
Reaction,of,methane,with,chlorine,,,ANS,-I:,Cl2,>,2Cl•
P:,CH4,+,Cl•,>,CH3•,+,Chi
,CH3•,+,Cl2,>,CH3Cl,+,Cl•
T:,CH3•,+,Cl•,>,CH3Cl
2,equations,showing,decomposition,of,the,ozone,,,ANS,-Cl•,+,O3,>,ClO•,+,O2
ClO•,+,O3,>,2O2,+,Cl•
What,types,of,mechanism,do,haloalkanes,undergo?,,,ANS,--
Nucleophilic,substitution,by,aqueous,hydroxide,ions,,cyanide,ions,or,ammonia
