初三化学总复习资料化学复习专题推断题doc.docx
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初三化学总复习资料化学复习专题推断题doc.docx
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初三化学总复习资料化学复习专题推断题doc
初三化学总复习资料化学复习专题推断题
The9thgradechemistryinferencesonpage1,page1ofpage1
1.Thematerialproperties
(1)canmaketheclarificationoflimewaterturbidcolorless,odorlessgasmaterialC02
(2)canmakethewoodwithMarsofgrubbygas02
(3)commonreducingagentsareetc,CO,H2C
(4)commonstimulatingodourgashaveS02,HC1,NH3
(5)thecommoncombustiblegasesareetcH2,CO,CH4
Themostimportantthingistheelementorsubstance
(1)themostabundantelementintheearth'scrustisthemetalthatcontainsthemost.0Al
(2)therelativemolecularmassisthesmallestoxideH20
(3)thesimplestorganicmatterisCH4
(4)isthemostcommonlyusedsolventsH20(5)theformationofcompoundelementisatmost.
(6)minimumrelativemolecularmassanddensityisalsothesmallestgasH2
3.Thestateofmaterial
Commongasissingle.H202,N2,
Commonsolidsarecommon.Fe,Cu,C,S,P
Useofmatter
Usedinartificialrainfall,iscommonlyusedasacondiment,NaClC02
Thecommonlyusedfooddesiccantis.CaO
5.ThecoiiunonnameforamatteroftheNaHC03
Ca(OH)2.bakingsodaslakedlimeandhydratedlimeexercises
1withmarbleandhematiteindustryasthemainrawmaterialformakingBandGtheconversionrelationsasshowninthefigurebelowknownforelementalD,G.Answerthefollowingquestions
1・Writethechemicalformulawhichbestcharacterizes
theindustrialmanufacturetwosubstancesBGCaOFe
ninthgradechemicalinferencecomponent2total2pages13
2.Writearesponse(3)chemicalequation
2,thecommonlyusedacidknownhydrochloricacid,sulfuricacid,nitricacidwithcommonlyusedalkalipotassiumhydroxide,sodiumhydroxidereactionsaltaqueoussolutionofneutral.Wantto
Abluecrystalscanbeincorporatedintoacolorlessinneutralsolutiontestaccordingtoprocessshownbelow
Fillintheblanktestaccordingtothefollowingrequirements
write1BandCinthesolutionofthesolutechemicalformulaBCBaC12NaOH
ifAispurecolorlessneutralliquidispureisneuterliquidfillchemicalformula...H20
3writewithcoloredliquidsolutionofCchemicalequations
3,AHarecommoninthejuniormiddleschoolchemistrythetransformationrelationshipbetweenthemasshown.AgasisthemaincomponentofEisAcommonfood
Desiccant.Pleaseanswer
Achemicalformula...CH4
Thebasicresponseoftheresponseis
Thechemicalequationofthereactionis
Thechemicalequationofreactionis
4,theAtoKintheimagebelowrepresentsthecommonsubstancesinmiddleschoolchemistry.KnownAandCtwocompositionelementsthesameGsolutionforAcertainmaterialdilutesolution
ThestrongsolutionofGmakesthestickblack.Someoftheproductsarenotshowninthepicture.
Pleaseanswerthefollowingquestions
1writethechemicalformulawhichbestcharacterizestheJmaywritea.Fe
towritethefollowingreactionchemicalequation2ninthgradechemicalinferencecomponent2total3pages13
(1)
(2)F+H-E+C
(3)theI+alkali->K
3towriteanotherreactionofchemicallaboratorypreparingDequation
5,accordingtotheconversionrelationshipisshowninthepictureontherightanswerquestions
(1)ifAforcommonblacksolidBredsolidBas
C02
(2)ifBforgasBaqueoussolutionforlightgreenisAholdreactionequationforalarm...
Thetypeofresponseis...Fe
(3)ifAredsolidBissilverywhitesolidisAnotedfor...AgN03
Thereare6A.B.C.D.E.Fsixkindsofcompounds,theyareontherelationshipbetweenreactioninaqueoussolutionasfollows,trytoinferthematerialchemicalformula:
A:
...B:
C:
D:
E:
ABaC12BBa(N03)2CAgClDBaS04EHN03
7A,B,C,D,E,F,Gforcommonmaterialamongthem,E,G,Bbelongstotheelementalreaction
(2)isthemainreactionintheironmakingindustrybelowit
Interconversion.Pleaseanswer
Thechemicalformulawhichbestcharacterizesthe1Asubstance.CuO
writereaction
(2)thechemicalequationCsubstancessolidisthenameofthethesolidmaterialisakindofuseinthepracticallife.
3writereaction(3)generatedintheredsolidchemicalequation
4aboveintothecausesofcolorlessgasG
excessivedilutehydrochloricacidandgeneratehydrogenironreaction
8,thereisAsodiumsaltofAsolublecalciumsaltandAB
experimentalsteps
solidmixtureaccordingtothefollowing
JudgingthemixtureoftwokindsofsaltchemicalformulafillB.Ninthgradechemicalinferencecomponent2total
4pages13
Na2C03CaC12
9,accordingtothegraph.Withthechemicalformulasaid
(1)Cis,Eis,DissolutionBaS04Fe
(OH)3FeC13
(2)ifBiswater,thenAis.Fe2(S04)3
(3)ifBisacidsolution,thenAis.Fe203
10,theexistingtransparentliquidsubstancesandsolidmatterBwiththestepsoftheexperimentandthephenomenonasshown
inthefigurebelow
1inaccordancewiththeabovechangescanb
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