Ocr Twenty First Century Science.

OCR TWENTY FIRST CENTURY
SCIENCE - GCSE - CHEMISTRY


Acidpi-pians--ApicompoundpithatpihaspiapipHpivaluepilowerpithanpi7.

AcidpiRainpi-pians--Rainpicontainingpidissolvedpisulfurpidioxidepiandpinitrogenpioxides.

ActivationpiEnergypi-pians--
Thepiminimumpiamountpiofpienergypirequiredpitopicausepiapireaction.

Alkalipi-pians--
ApicompoundpithatpihaspiapipHpivaluepihigherpithanpi7piandpiispisolublepiinpiwater.

AlkalipiMetalspi-pians--ThepisixpimetalspiinpiGrouppi1piofpithepiperiodicpitable.

Alkanepi-pians--ApisaturatedpihydrocarbonpiwithpithepigeneralpiformulapiCnH2n+2

Alkenepi-pians--
AnpiunsaturatedpihydrocarbonpiinpiwhichpitherepiispionepiorpimorepiC=Cpidoublepibonds.

Atmospherepi-pians--ThepilayerpiofpigaspisurroundingpithepiEarth.

Atompi-pians--Thepismallestpichemicalpiparticlepiofpianpielement.

AtompiEconomypi-pians--
Apimeasurepiofpithepiamountpiofpireactantspiinpiapichemicalpireactionpithatpiendpiuppiaspiuse
fulpiproducts;piusuallypiexpressedpiaspiapipercentage.

Brinepi-pians--Apisolutionpiofpisodiumpichloridepiinpiwater.

Catalystpi-pians--
Apisubstancepithatpiincreasespithepiratepiofpiapichemicalpireactionpiwithoutpibeingpichanged
piitself.


CatalyticpiConverterpi-pians--
Apidevicepifittedpitopiapicarpiexhaustpitopireducepithepiemissionspiofpiairpipollutants.

ChemicalpiSynthesispi-pians--
Thepiprocesspibypiwhichpirawpimaterialspiarepimadepiintopiusefulpiproducts.

, Chromatographypi-pians--
Apitechniquepiusedpitopiseparatepidifferentpicompoundspiinpiapimixturepiaccordingpitopihowp
iwellpitheypidissolvepiinpiapiparticularpisolvent.


CollisionpiTheorypi-pians--Apiprinciplepithatpihelpspitopiexplainpiratespiofpireaction.

Combustionpi-pians--
Apichemicalpireactionpithatpioccurspiwhenpifuelspiburnpiinpioxygen,pireleasingpiheat.

Compoundpi-pians--
Apisubstancepiconsistingpiofpitwopiorpimorepidifferentpielementspichemicallypicombined.

CovalentpiBondpi-pians--
Apibondpibetweenpitwopiatomspiinpiwhichpithepiatomspisharepionepiorpimorepipairspiofpielect
rons.

CrudepiOilpi-pians--Apiliquidpimixturepiofpihydrocarbonspifoundpiinpirocks.

Currentpi-pians--Thepiratepiofpiflowpiofpianpielectricalpicharge,pimeasuredpiinpiAmperespi(A).

DenaturedpiEnzymepi-pians--
Anpienzymepithatpihaspihadpiitspishapepidestroyedpibypiheatpiandpicanpinopilongerpicatalyse
pireactions.


Diamondpi-pians--
Apiformpiofpipurepicarbonpiinpiwhichpieachpiatompiispibondedpitopifourpiotherpiatomspitopigive
piapiverypihardpisubstance.


DiatomicpiMoleculepi-pians--Apimoleculepithatpionlypiexistspiinpipairspiofpiatoms.

Displacementpi-pians--
Thepiprocesspithatpioccurspiduringpiapichemicalpireactionpiwhenpiapimorepireactivepielemen
tpiwillpiswappiplacespiwithpiapilesspireactivepielementpiwithinpiapicompound.

DynamicpiEquilibriumpi-pians--
Inpiapireversiblepireaction,piwhenpithepiratepiofpithepiforwardspireactionpiequalspithepiratepiof
pithepireversepireaction.


Electrolysispi-pians--
Thepiprocesspibypiwhichpianpielectricpicurrentpicausespiapisolutionpitopiundergopichemicalpi
decomposition.

Electrolytepi-pians--
Thepimoltenpiorpiaqueouspisolutionpiofpianpiionicpicompoundpiusedpiinpielectrolysis.