英语化学考试题及答案
一、单项选择题(每题2分,共20分)
1.Thechemicalsymbolforironis()
A.FeB.CuC.AuD.Ag
2.“H?O”represents()
A.hydrogenB.oxygenC.waterD.carbondioxide
3.Thecorrectpronunciationof“chemical”is()
A./?kem?kl/B./?k?m?kl/C./?k?m?kl/D./?kem?k?l/
4.Whichofthefollowingisaphysicalchange?()
A.BurningwoodB.RustingofironC.MeltingiceD.Digestingfood
5.Whatistheoxidationstateofoxygeninmostcompounds?()
A.+1B.-1C.+2D.-2
6.Theformulaforsulfuricacidis()
A.HClB.H?SO?C.HNO?D.H?PO?
7.Theword“atom”means()
A.分子B.原子C.离子D.电子
8.Whichgasmakesupabout78%oftheEarthsatmosphere?()
A.OxygenB.CarbondioxideC.NitrogenD.Hydrogen
9.“Reactant”refersto()
A.产物B.催化剂C.反应物D.溶剂
10.Theprocessofchangingaliquidtoagasiscalled()
A.condensationB.evaporationC.sublimationD.freezing
二、多项选择题(每题2分,共20分)
1.Whichofthefollowingareelements?()
A.IronB.WaterC.OxygenD.Sodiumchloride
2.Whatarethepropertiesofmetals?()
A.GoodconductorsofheatB.MalleableC.DuctileD.Brittle
3.Whichofthefollowingarechemicalreactions?()
A.DissolvingsaltinwaterB.BurningpaperC.PhotosynthesisD.Meltingwax
4.Commonunitsformeasuringvolumeinchemistryare()
A.literB.milliliterC.kilogramD.gram
5.Whichsubstancesareacids?()
A.HydrochloricacidB.SodiumhydroxideC.SulfuricacidD.Calciumhydroxide
6.Whatarethepartsofanatom?()
A.ProtonB.NeutronC.ElectronD.Molecule
7.Whichgasesaregreenhousegases?()
A.CarbondioxideB.MethaneC.OxygenD.Nitrousoxide
8.Chemicalbondsinclude()
A.IonicbondB.CovalentbondC.MetallicbondD.Hydrogenbond
9.Whichofthefollowingareusedinthelaboratory?()
A.TesttubeB.BeakerC.BunsenburnerD.Thermometer
10.Whichelementsareimportantforlivingorganisms?()
A.CarbonB.H