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1、《过氧化氢制氧气》教案、学案及反思（Hydrogenperoxideoxygenteachingplan,casestudyandreflection）"Hydrogenperoxideoxygen"teachingplan,casestudyandreflection"Hydrogenperoxidetooxygen"lessonplanKagenoriMiddleSchoolofSuzhouMinHuaDongTeachingobjective1,learntomasterthelaborat
2、oryhydrogenperoxidetoproduceoxygenmethod(reactionprinciple,experimentaldevice,collectionmethod,full).2.Accordingtotheexperimentalreport,theexperimentcanbecompletedindependentlyandthebasicoperationoftheexperimentcanbestandardized.3,explorethecharacteri
3、sticsofthecatalyst.4.Understandingofhydrogenperoxidesolutionandmanganesedioxidetoproduceoxygenforthedevicetoproducewhatgas.EmotionalgoalThroughthestudyofthislesson,wecancultivatestudents'abilitytoanalyze,contrastandtransferknowledge,andthecouragetopra
4、ctice,tobeinnovativeandscientificspiritandunityandcooperationconsciousness.TeachingemphasisTheprincipleofoxygenextractionandthechoiceofdeviceTeachingdifficultiesCatalystconceptTeachingsuppliesExploringmultimediaprojectionofexperimentalarticlesinstruct
5、ionaldesignProblemintroduction:oxygenisanindispensablesubstanceinourlife,ithasawiderangeofuses,suchasemergencypatients,weldingandcuttingmetal,steelmakingandsoon,needmorepureoxygen.Howdoyoumakeoxygen?Question:welearnedbefore,whichwaycanwegetoxygen?Answ
6、er:industrialairseparationofliquidoxygen,canbeusedinlaboratoryPotassiumPermanganateheatingoxygen.Question:inthelaboratorycanuseothermaterialreactiontooxygen?That'swhatwe'regoingtoexploretoday.Blackboardwriting:hydrogenperoxideforoxygenproductionExperi
7、mentalprinciplemanganesedioxideHydrogenperoxidewater+oxygenExperiment:producemedicineandobserve.Answer:accordingtothelabelshowsthatthechemicalformulaofhydrogenperoxideisH2O2,itsaqueoussolutioniscommonlyknownashydrogenperoxide,colorlessliquid,thehydrog
8、enperoxideconcentrationusedinthisexperimentis5%.ThechemicalformulaofmanganesedioxideisMnO2,whichisblackpowder.Question:hydrogenperoxideandmanganesedioxideareusedtoproduceoxygen.Solidandliquidareused,andthereactionrateisveryfast.Whatkindofdevic
