QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
TheGLawGofGDefiniteGProportionsGstatesGthatGinGaGgivenGchemicalGcompound,GtheGelementsGareGalwaysGco
mbinedGinGtheGsameGproportionsGbyG_______________G-GANSWERGmass
TheGLawGofGConservationGofGmassGstatesGthatGnoGdetectableGgainGorGlossGofGmassGoccursGinGchemicalGreac
tions.GMassGisG_______________.G-GANSWERGconserved
Dalton'sGatomicGtheoryGstatesGthatGmatterGconsistsGofGtinyGparticlesGcalledG_____________G-
GANSWERGatoms
Dalton'sGtheoryGalsoGstatesGthatGatomsGareG____________:GinGchemicalGreactions,GatomsGcanGrearrangeGb
utGtheyGdoGnotGthemselvesGbreakGapart.G-GANSWERGindestructable
Dalton'sGtheoryGalsoGstatesGthatGinGaGgivenGcompoundGtheGconstituentGatomsGareGalwaysGpresentGinGtheGs
ameGfixedGnumericalG____________G-GANSWERGratio
ElectronsGareG___________Gcharged,GprotonsGareG______________Gcharged,GandGneutronsGareG_______
__________.G-GANSWERGnegatively,Gpositively,Gneutral
ElectronsGareGmuchG_______________GthanGprotonsGandGneutronsG-GANSWERGsmaller
ProtonsGandGneutronsGareGfoundGwithinGtheG_____________GofGanGatomG-GANSWERGnucleus
InGaGneutralGatom,GtheGnumberGofG____________GandG_______________GmustGbeGequal.G-
GANSWERGprotons,Gelectrons
TheGatomicGnumberGfGanGatomG=GitsGnumberGofG_______________G-GANSWERGprotons
theGmassGnumberGofGanGatomG=G___________+____________G-GANSWERGprotons,Gneutrons
, IsotopesGvaryGonlyGinGtheGnumberGofG___________________G-GANSWERGneutrons
___________GisGdefinedGasGanythingGthatGoccupiesGspaceGandGhasGmassG-GANSWERGmatter
_______GrefersGtoGhowGmuchGmatterGthereGisGinGaGgivenGobject,GwhereasG___________GrefersGtoGtheGforc
eGwithGwhichGtheGobjectGisGattractedGbyGgravityG-GANSWERGmass,Gweight
____________G____________GareGtransformationsGthatGalterGtheGchemicalGcompositionsGofGsubstancesG-
GANSWERGchemicalGreactions
SubstancesGthatGcannotGbeGdecomposedGintoGsimplerGmaterialsGbyGchemicalGreactionsGareGcalledG______
______G-GANSWERGelements
ElementsGandGcompoundsGareGexamplesGofG________G___________,GtheGcompositionGofGwhichGisGalways
GtheGsame,GregardlessGofGitsGsource.G-GANSWERGpureGsubstances
_____________GcanGhaveGvariableGcompositionsG-GANSWERGMixtures
AG________________GmixtureGhasGtheGsameGpropertiesGthroughoutGtheGsampleGandGisGcalledGaG_______
_________G-GANSWERGhomogeneous;Gsolution
AG___________________GmixtureGconsistsGofGtwoGorGmoreGregions,GcalledG_____________GthatGdifferGinG
propertiesG-GANSWERGheterogeneous;Gphases
FormationGorGseparationGofGaGmixtureGintoGitsGcomponentsGcanGbeGaccomplishedGbyGaG_____________Gc
hange,GwhichGformationGorGdecompositionGofGaGcompoundGtakesGplaceGbyGaG___________GchangeGthatGc
hangesGtheGchemicalGmakeupGofGtheGsubstancesGinvolved.G-GANSWERGphysical;Gchemical
AG________GpropertyGisGoneGthatGcanGbeGobservedGwithoutGchangingGtheGchemicalGmakeupGofGaGsubstan
ce,GwhileGaG________GpropertyGdescribesGhowGaGsubstanceGundergoesGaGchemicalGchange/reaction.G-
GANSWERGphysical;Gchemical