AQA GCSE Combined Science Trilogy - Chemistry -with correct answers 2025

AQA GCSE Combined Science Trilogy
- Chemistry -with correct answers
2025


purevsubstancev-vcorrect-answers-
singlevelement,vcompoundvorvsubstancevnotvmixedvwithvanothervsubstance



physicalvprocessesv-vcorrect-answers-mixturesvcanvbevseparatedvby...



simplevdistillationv-vcorrect-answers-evaporatingvwatervandvcondensingvitvinvavseparatevcontainer



fractionalvdistillationv-vcorrect-answers-evaporatingvliquidsvwithvdifferentvboilingvpoints



filtrationv-vcorrect-answers-screeningvandvsievingvtovremovevsolids



chromatographyv-vcorrect-answers-usingvavsolventvtovseparatevpigmentsvsovyouvcanvidentifyvthem



crystallisationv-vcorrect-answers-
evaporatingvavsolutionvtovavsmallvvolumevandvleavingvitvtovcoolvtovformvcrystals

,chemicallyvbondedv-vcorrect-answers-avmixturevisvmadevfromvdifferentvsubstancesvthatvaren't...



avmixturevdesignedvforvavusev-vcorrect-answers-avformulationvis...



mixingvcomponentsvinvcarefullyvmeasuredvamountsv-vcorrect-answers-avformulationvisvmadevby...



thevsolventvmovesvthroughvthevpaperv-vcorrect-answers-invpapervchromatography...



differentvcompoundsvtovdifferentvdistancesvdependingvonvtheirvattractionvtovthevpapervandvsolven
tv-vcorrect-answers-chromatographyvcarries...



distancevmovedvbyvcompoundv÷vdistancevmovedvbyvsolventv-vcorrect-answers-Rfvvaluev=



singlevspotvinvallvsolventsv-vcorrect-answers-invchromatography,vavpurevcompoundvproducesva...



dampvbluevlitmusvpapervredvandvthenvbleachesvitvwhitev-vcorrect-answers-chlorinevturns...



glowingvsplintvrelightv-vcorrect-answers-oxygenvgasvtestvmakesva...



squeakyvpopvsoundv-vcorrect-answers-hydrogenvgasvtestvmakesva...



limewatervgovcloudyv-vcorrect-answers-carbonvdioxidevgasvtestvmakes...



warmth,vshelter,vfoodvandvtransportv-vcorrect-answers-thevEarthvprovidesvhumansvwith...



food,vtimber,vclothingvandvfuelsv-vcorrect-answers-
naturalvresourcesvalongvwithvagriculturevgivevus...

,processesvtovmakevenergyvandvmaterialsv-vcorrect-answers-finitevresourcesvinvolve...



therevisvonlyvavcertainvamountvofvthemv-vcorrect-answers-finitevmeans...



usingvthevEarth'svresourcesvinvavwayvthatvcanvcontinuevinvthevfuture.v-vcorrect-answers-
sustainablevresourcesvinvolves...



meetvthevneedsvofvpeoplevtodayvwithoutvimpactingvonvthevneedsvofvpeoplevinvthevfuturev-vcorrect-
answers-sustainablevdevelopmentvshould...



safevtovdrinkv-vcorrect-answers-potablevwatervis...



dissolvedvsaltsvandvmicrobesv-vcorrect-answers-potablevwatervhasvavlowvenoughvlevelvof...



purevwaterv-vcorrect-answers-potablevwatervisn't...



novothervsubstancesv-vcorrect-answers-purevwatervcontains...



dissolvedvsaltsvbehindv-vcorrect-answers-
testingvwatervpurityvusingvevaporation:vevaporatingvwatervwillvleave...



solidvresiduevwillvbevleftv-vcorrect-answers-
testingvwatervpurityvusingvevaporation:vthevpurervthevwater,vthevless...



100°Cv-vcorrect-answers-testingvwatervpurityvusingvboilingvpoint:vpurevwatervwillvboilvat...

, 0°Cv-vcorrect-answers-testingvwatervpurityvusingvboilingvpoint:vpurevwatervwillvmeltvat...



agriculturalvandvindustrialvprocessesv-vcorrect-answers-
chemistryvisvimportantvinvresearchvtovimprove...



treatvwatervandvmakevitvpotablev-vcorrect-answers-sterilisingvagentsvarevusedvto...



rainvwatervwithvlowvamountsvofvdissolvedvsubstancesv-vcorrect-answers-groundvwatervis...



groundvwaterv-vcorrect-answers-mostvpotablevwatervinvthevUKvisvfrom...



choosingvavsource,vfilteringvandvsterilisingvthevwaterv-vcorrect-answers-
potablevwatervisvproducedvby:



desalinationvmayvbevusedv-vcorrect-answers-ifvfreshvwatervsuppliesvarevlimited...



removingvsaltvfromvseavwaterv-vcorrect-answers-desalinationvinvolves...



reversevosmosisvorvdistillationv-vcorrect-answers-watervcanvbevdesalinatedvusing...



lotsvofvenergyv-vcorrect-answers-watervdesalinationvrequires...



lotsvofvwastevwaterv-vcorrect-answers-cityvlifestylesvandvindustryvproduce...



treatedvbeforevitvisvreleasedvintovthevenvironmentv-vcorrect-answers-wastevwatervneedsvtovbe...