AQA A LEVEL CHEMISTRY- DEFINITIONS PAPER
2 QUESTIONS WITH ACCURATE ANSWERS .
spectator,ion,,,ANS,-ion,which,does,not,take,part,in,a,reaction
ionic,lattice,,,ANS,-ionic,solid,formed,with,the,ions,held,in,a,three-dimensional,framework
coordinate,bond,,,ANS,-
a,bond,containing,a,shared,pair,of,electrons,with,both,electrons,supplied,by,one,atom
allotropes,,,ANS,-different,forms,of,the,same,element,in,the,same,physical,state,(diamond,and,graphite)
electronegativity,,,ANS,-the,power,of,an,atom,to,attract,the,pair,of,electrons,in,a,covalent,bond
induced,dipole,,,ANS,-
a,temporary,dipole,caused,by,electrons,being,more,distributed,to,one,side,of,an,atom,than,the,other,and,
another,molecule,approaching,this,side,will,have,its,electrons,repelled
enthalpy,change,,,ANS,-heat,energy,change,at,constant,pressure
activation,energy,,,ANS,-minimum,amount,of,energy,needed,for,reacting,particles,to,successfully,collide
standard,enthalpy,value,,,ANS,-
the,delta,H,values,for,enthalpy,changes,of,specific,reactions,measured,under,standard,conditions
conservation,of,energy,,,ANS,-
law,stating,energy,cannot,be,created,or,destroyed,,just,converted,from,one,form,to,another
Hess',Law,,,ANS,-
law,stating,the,enthalpy,change,for,a,chemical,reaction,is,independent,of,the,route,taken,and,depends,on
ly,on,the,initial,and,final,states
, mean,bond,enthalpy,,,ANS,-
measure,of,energy,required,to,break,one,mole,of,a,covalent,bond,measured,in,the,gaseous,state,average
d,across,many,compounds,containing,the,bond
dynamic,equilibrium,,,ANS,-
where,you,have,a,steady,state,because,the,rates,of,the,forward,reaction,and,reverse,reaction,are,the,sam
e
rate,of,reaction,,,ANS,-change,in,concentration,of,a,reactant,or,product,in,a,given,period,of,time
Le,Chatelier's,principle,,,ANS,-
law,stating,if,a,factor,is,changed,which,affects,a,system,in,equilibrium,,the,position,of,equilibrium,will,mov
e,in,a,direction,so,as,to,oppose,the,change
hydration,reaction,,,ANS,-reaction,where,water,is,added,is,added,to,a,compound
functional,group,,,ANS,-
group,of,atoms,which,are,responsible,for,the,characteristic,reactions,of,a,compound
homologous,series,,,ANS,-group,of,compounds,with,the,same,general,formula
structural,isomer,,,ANS,-structure,with,the,same,molecular,formula,but,different,structural,formula
saturated,,,ANS,-each,atom,has,the,maximum,number,of,single,bonds
fractional,distillation,,,ANS,-
continual,evaporation,and,condensation,of,a,mixture,causing,the,components,to,separate,because,of,a,di
fference,in,boiling,point
fraction,,,ANS,-
group,of,compounds,with,similar,boiling,points,and,are,removed,at,the,same,level,of,a,fractionating,colu
mn
2 QUESTIONS WITH ACCURATE ANSWERS .
spectator,ion,,,ANS,-ion,which,does,not,take,part,in,a,reaction
ionic,lattice,,,ANS,-ionic,solid,formed,with,the,ions,held,in,a,three-dimensional,framework
coordinate,bond,,,ANS,-
a,bond,containing,a,shared,pair,of,electrons,with,both,electrons,supplied,by,one,atom
allotropes,,,ANS,-different,forms,of,the,same,element,in,the,same,physical,state,(diamond,and,graphite)
electronegativity,,,ANS,-the,power,of,an,atom,to,attract,the,pair,of,electrons,in,a,covalent,bond
induced,dipole,,,ANS,-
a,temporary,dipole,caused,by,electrons,being,more,distributed,to,one,side,of,an,atom,than,the,other,and,
another,molecule,approaching,this,side,will,have,its,electrons,repelled
enthalpy,change,,,ANS,-heat,energy,change,at,constant,pressure
activation,energy,,,ANS,-minimum,amount,of,energy,needed,for,reacting,particles,to,successfully,collide
standard,enthalpy,value,,,ANS,-
the,delta,H,values,for,enthalpy,changes,of,specific,reactions,measured,under,standard,conditions
conservation,of,energy,,,ANS,-
law,stating,energy,cannot,be,created,or,destroyed,,just,converted,from,one,form,to,another
Hess',Law,,,ANS,-
law,stating,the,enthalpy,change,for,a,chemical,reaction,is,independent,of,the,route,taken,and,depends,on
ly,on,the,initial,and,final,states
, mean,bond,enthalpy,,,ANS,-
measure,of,energy,required,to,break,one,mole,of,a,covalent,bond,measured,in,the,gaseous,state,average
d,across,many,compounds,containing,the,bond
dynamic,equilibrium,,,ANS,-
where,you,have,a,steady,state,because,the,rates,of,the,forward,reaction,and,reverse,reaction,are,the,sam
e
rate,of,reaction,,,ANS,-change,in,concentration,of,a,reactant,or,product,in,a,given,period,of,time
Le,Chatelier's,principle,,,ANS,-
law,stating,if,a,factor,is,changed,which,affects,a,system,in,equilibrium,,the,position,of,equilibrium,will,mov
e,in,a,direction,so,as,to,oppose,the,change
hydration,reaction,,,ANS,-reaction,where,water,is,added,is,added,to,a,compound
functional,group,,,ANS,-
group,of,atoms,which,are,responsible,for,the,characteristic,reactions,of,a,compound
homologous,series,,,ANS,-group,of,compounds,with,the,same,general,formula
structural,isomer,,,ANS,-structure,with,the,same,molecular,formula,but,different,structural,formula
saturated,,,ANS,-each,atom,has,the,maximum,number,of,single,bonds
fractional,distillation,,,ANS,-
continual,evaporation,and,condensation,of,a,mixture,causing,the,components,to,separate,because,of,a,di
fference,in,boiling,point
fraction,,,ANS,-
group,of,compounds,with,similar,boiling,points,and,are,removed,at,the,same,level,of,a,fractionating,colu
mn
