资源描述：
《难溶电解质的溶解平衡教案_新人教选修（difficult to dissolve _ new electrolyte balance plan to teach elective ）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、难溶电解质的溶解平衡教案_新人教选修4（Difficulttodissolve_newelectrolytebalanceplantoteachelective4）TeachingdesignofinsolubleelectrolytedissolutionbalanceI.teachingobjectivesKnowledgeandskills:enablestudentstomasterthedissolution,equilibriumanddissolutionequilibriaofinsolubleelectrolytes,anduseequilibriumshiftingp
2、rinciplestosolvetheproblemofdissolutionandprecipitationofprecipitation.Trainstudents'knowledgetransferability,abilitytodoexperimentsandlogicalreasoningabilityProcessandmethod:guidestudentstodoexperiments,analyzeexperiments,studyindependently,thinkindependently,learntoanalyzeandsolveproblemsaccord
3、ingtotheexperimentalphenomena.Emotion,attitudeandvalues:enhancingthesenseofunityandcooperationinactivities,cultivatingstudents'interestinlearningchemistry,anddialecticaldialecticalmaterialismofopposites.Two,teachingkeypoints:insolubleelectrolytedissolvedequilibrium,precipitationconversionThree,te
4、achingdifficulties:precipitationtransformationanddissolutionFour,teachingmethods:experimentalmethods,independentlearning,cooperativeinquiry,multimediadisplayFive,teachingprocess[introduction]theknowledgeofsolubilityinjuniorhighschoolandthetheoryofchemicalbalanceinhighschoolstudy.Toanalyzeseveralc
5、asesofNaCldissolvedinwaterandintroducenewcourses.[students]recall,think,observe[question]inNaClsolution,thenaddingsolidsolute,thereisnosoliddissolutionprocess?WhenV(crystallization)=v(dissolved),whatisthestateofthesystem?[students]thinkandanswer[a]balanceofdissolutionNaCl(s),Na+(AQ),+Cl-(AQ)[demo
6、nstration]coppersulphatecrystalsmadeinsaturatedCuSO4solutions.[explanation]theequilibriumofdissolutionhasthebalancecharacteristicsofequivalence,motion,determinationandchange.Anybalanceisrelative,temporary,andconditional.Whenaconditionchangesthebalance,thebalancemoves.[students]recallchemicalequil
7、ibriumtheoryandestablishrelationshipswithdissolutionequilibria[question]canNaClandhydrochloricacid?[students]thinkandanswer[demonstrationexperiment]addhydrochloricacidtosaturatedNaClsolution[student]observethephenomeno
