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AQA GCSE CHEMISTRY PAPER 2 QUESTION WITH VERIFIED ANSWERS.
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AQA GCSE CHEMISTRY PAPER 2QUESTION WITH VERIFIED ANSWERS
How hdo hyou hmeasure hthe hrate hof ha hreaction? h- h✔✔By hmeasuring hthe hquantity hof
ha hreactant hused hor hthe hquantity hof hproduct hformed hover htime
What his hthe hequation hfor hcalculating hthe hmean hrate hof ha hreaction hby hmeasuring
hthe hamount hof hreactant hused? h- h✔✔Mean hrate hof hreaction h= hquantity hof hreactant
hused/time htaken
What his hthe hequation hfor hcalculating hthe hmean hrate hof ha hreaction hby hmeasuring
hthe hamount hof hproduct hformed? h- h✔✔Mean hrate hof hreaction h= hquantity hof
hproduct hformed/time htaken
What hunits hcan hyou hmeasure hthe hrate hof ha hreaction hin? h- h✔✔g/s hor hcm3/s hor
hmol/s
How hdo hyou hcalculate hthe hrate hof ha hreaction hat ha hspecific htime hfrom hgraph hof
hthe hquantity hof hreactant hused hor hthe hquantity hof hproduct hformed? h- h✔✔By
hmeasuring hthe hgradient hof ha htangent hdrawn hat hthat hspecific htime hon hthe hgraph
What hare hthe hfive hfactors hthat hcan haffect hthe hrate hof ha hreaction? h-
h✔✔Concentration hof hreactants hin hsolution, hpressure hof hreacting hgases, hsurface
harea hof hsolid hreactants, htemperature hand hthe hpresence hof ha hcatalyst
What htheory hcan hwe huse hto hexplain hhow hvarious hfactors haffect hthe hrate hof ha
hreaction? h- h✔✔Collision htheory
What his hcollision htheory? h- h✔✔Chemical hreactions hcan hoccur honly hwhen hreacting
hparticles hcollide hwith heach hother hand hwith hsufficient henergy
What his hthe hactivation henergy hof ha hreaction? h- h✔✔The hminimum hamount hof
henergy hthat hparticles hmust hhave hto hreact
According hto hcollision htheory hwhy hdoes hincreasing hconcentration hof hreactant hin
hsolution hincrease hthe hrate hof hthe hreaction? h- h✔✔It hincreases hthe hfrequency hof
hcollisions hand hso hincreases hthe hrate hof hreaction
,According hto hcollision htheory hwhy hdoes hincreasing hthe hpressure hof hreacting hgases
hincrease hthe hrate hof hthe hreaction? h- h✔✔It hincreases hthe hfrequency hof hcollisions
hand hso hincreases hthe hrate hof hreaction
According hto hcollision htheory hwhy hdoes hincreasing hthe hsurface harea hof hsolid
hreactants hin hsolution hincrease hthe hrate hof hthe hreaction? h- h✔✔It hincreases hthe
hfrequency hof hcollisions hand hso hincreases hthe hrate hof hreaction
According hto hcollision htheory hwhy hdoes hincreasing htemperature hincrease hthe hrate
hof hthe hreaction? h- h✔✔It hincreases hthe hfrequency hof hcollisions hand hmakes hthe
hcollision hmore henergetic hand hso hincreases hthe hrate hof hreaction
How hdo hyou hincrease hthe hsurface harea hof ha hsolid hreactant? h- h✔✔Grind hit hinto ha
hpowder hthat hhas hsmaller hparticle hsize
What heffect hdoes hincreasing hthe htemperature hof ha hreaction hby h10°C hhave hon hthe
hrate hof ha hreaction? h- h✔✔It hdoubles hit
What his ha hcatalyst? h- h✔✔A hchemical hthat hchanges hthe hrate hof ha hchemical
hreaction hbut his hnot hused hup hin hthe hreaction
How hdo hcatalysts hincrease hthe hrate hof ha hreaction? h- h✔✔By hproviding ha hdifferent
hpathway hfor hthe hreaction hthat hhas ha hlower hactivation henergy
How hdo hyou hknow hin ha hreaction hthat ha hchemical his hused hin ha hreaction his ha
hcatalyst? h- h✔✔It his hnot hincluded hin hthe hchemical hequation hfor hthe hreaction
What his ha hreversible hreaction? h- h✔✔Where hthe hproducts hof ha hchemical hreaction
hcan hreact hto hproduce hthe horiginal hreactants
What his hthe hsymbol hused hin hreversible hreaction hequations hthat hshows hthat hthe
hreaction his hreversible? h- h✔✔
How hcan hyou hchange hthe hdirection hof ha hreversible hreaction? h- h✔✔By hchanging
hthe hconditions; hfor hexample hheating hor hcooling hthe hreaction
Describe hthe henergy hchanges hin ha hreversible hreaction h- h✔✔One hdirection hwill hbe
hexothermic hand hthe hother hdirection hendothermic
When his hequilibrium hin ha hreversible hreaction hachieved hin happaratus hwhich
hprevents hthe hescape hof hreactants hand hproducts? h- h✔✔When hthe hrate hof hthe
hforward hand hreverse hreactions hoccur hat hexactly hthe hsame hrate
What haffects hthe hrelative hamount hof hall hthe hreactants hand hproducts hat hequilibrium
hin ha hreversible hreaction? h- h✔✔The hconditions
, What hhappens hto han hequilibrium hif hany hof hthe hconditions hchange? h- h✔✔The
hsystem hresponds hto hcounteract hthe hchange
What hdoes hLe hChatelier's hprinciple hpredict? h- h✔✔The heffects hof hchanging
hconditions hon ha hsystem hat hequilibrium
What haffect hwill hchanging hthe hconcentration hof hone hof hthe hreactants hin ha
hreversible hreaction hhave hon hthe hequilibrium? h- h✔✔The hsystem hwill hno hlonger hbe
hin hequilibrium hand hthe hconcentration hof hall hthe hsubstances hwill hchange huntil
hequilibrium his hreached hagain
What hhappens hwhen hthe hconcentration hof ha hreactant his hincreased hin ha hreversible
hreaction? h- h✔✔More hproducts hwill hbe hformed huntil hequilibrium his hreached hagain
What hhappens hwhen hthe hconcentration hof ha hproduct his hdecreased hin ha hreversible
hreaction? h- h✔✔More hreactant hwill hreact huntil hequilibrium his hreached hagain
What hhappens hwhen hthe htemperature hof ha hsystem hin hequilibrium his hincreased? h-
h✔✔The hrelative hamount hof hproducts hat hequilibrium hincreases hfor han hendothermic
hreaction hOR hThe hrelative hamount hof hproducts hat hequilibrium hdecreases hfor han
hexothermic hreaction
What hhappens hwhen hthe htemperature hof ha hsystem hin hequilibrium his hdecreased? h-
h✔✔The hrelative hamount hof hproducts hat hequilibrium hdecreases hfor han hendothermic
hreaction hOR hThe hrelative hamount hof hproducts hat hequilibrium hincreases hfor han
hexothermic hreaction
What hhappens hin hgaseous hreactions hwhen hthe hpressure hof ha hsystem hin
hequilibrium his hincreased? h- h✔✔The hequilibrium hposition hshifts htowards hthe hside
hwith hthe hsmaller hnumber hof hmolecules has hshown hby hthe hsymbol hequation hfor hthe
hreaction
What hhappens hin hgaseous hreactions hwhen hthe hpressure hof ha hsystem hin
hequilibrium his hdecreased? h- h✔✔The hequilibrium hposition hshifts htowards hthe hside
hwith hthe hlarger hnumber hof hmolecules has hshown hby hthe hsymbol hequation hfor hthe
hreaction
Where his hcrude hoil hfound? h- h✔✔In hrocks
What his hcrude hoil hformed hfrom? h- h✔✔The hremains hof han hancient hbiomass
hconsisting hmainly hof hplankton hthat hwas hburied hin hmud
What hchemically his hcrude hoil? h- h✔✔A hmixture hof ha hlarge hnumber hof hcompounds;
hmainly hhydrocarbons
What his ha hhydrocarbon? h- h✔✔A hmolecule hmade hup hof hcarbon hand hhydrogen honly
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