首页 > >离子共存 强弱电解质

高中化学

离子共存 强弱电解质

0
描述:在pH=1的无色透明溶液中不能大量共存的离子组是( ) A、Al3+、Ag+、NO3-、Cl- B、Mg2+、NH4+、NO3-、Cl- C、Ba2+、K+、S2-、Cl- D、Zn2+、Na+、NO3-、SO42

课程:离子共存及离子方程式的正误判断

时间:2011-05-30  提问者: 琳琳

问题:离子共存 强弱电解质

共 1 个答案

  • 提示:能生成沉淀、弱电解质的离子组不能共存。 参考答案:A中的Ag+和Cl-不能共存,C中因为pH=1,H+和S2-不能共存,故选AC。
    设为最佳

    时间:2011-05-30

    顶(0) 踩(0)
首页1共1页 跳到 确定

相关知识点

  • FreeMarker template error!
    
    
    Expression cgitem is undefined on line 325, column 58 in WEB-INF/template/question/question-answerpage-kind.ftl.
    The problematic instruction:
    ----------
    ==> ${cgitem.id} [on line 325, column 56 in WEB-INF/template/question/question-answerpage-kind.ftl]
    ----------
    
    Java backtrace for programmers:
    ----------
    freemarker.core.InvalidReferenceException: Expression cgitem is undefined on line 325, column 58 in WEB-INF/template/question/question-answerpage-kind.ftl.
    	at freemarker.core.TemplateObject.assertNonNull(TemplateObject.java:124)
    	at freemarker.core.TemplateObject.invalidTypeException(TemplateObject.java:134)
    	at freemarker.core.Dot._getAsTemplateModel(Dot.java:78)
    	at freemarker.core.Expression.getAsTemplateModel(Expression.java:89)
    	at freemarker.core.Expression.getStringValue(Expression.java:93)
    	at freemarker.core.DollarVariable.accept(DollarVariable.java:76)
    	at freemarker.core.Environment.visit(Environment.java:208)
    	at freemarker.core.MixedContent.accept(MixedContent.java:92)
    	at freemarker.core.Environment.visit(Environment.java:208)
    	at freemarker.core.IteratorBlock$Context.runLoop(IteratorBlock.java:167)
    	at freemarker.core.Environment.visit(Environment.java:415)
    	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:102)
    	at freemarker.core.Environment.visit(Environment.java:208)
    	at freemarker.core.IfBlock.accept(IfBlock.java:82)
    	at freemarker.core.Environment.visit(Environment.java:208)
    	at freemarker.core.MixedContent.accept(MixedContent.java:92)
    	at freemarker.core.Environment.visit(Environment.java:208)
    	at freemarker.core.Environment.process(Environment.java:188)
    	at freemarker.template.Template.process(Template.java:237)
    	at org.apache.struts2.views.freemarker.FreemarkerResult.doExecute(FreemarkerResult.java:215)
    	at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
    	at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:371)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:275)
    	at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
    	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
    	at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
    	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
    	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
    	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
    	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:239)
    	at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:161)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at com.me.framework.filter.AuthorizationInterceptor.intercept(AuthorizationInterceptor.java:167)
    	at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
    	at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
    	at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:563)
    	at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
    	at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    	at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195)
    	at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159)
    	at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141)
    	at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90)
    	at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    	at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
    	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
    	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
    	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
    	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    	at java.lang.Thread.run(Thread.java:662)
    
    找不到页面

    算了,返回或找首页去。

    java.lang.IllegalStateException org.apache.catalina.connector.ResponseFacade.sendError(ResponseFacade.java:407) javax.servlet.http.HttpServletResponseWrapper.sendError(HttpServletResponseWrapper.java:108) org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:906) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:586) org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77) org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436) org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374) org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302) org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195) org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159) org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141) org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90) org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:417) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) java.lang.Thread.run(Thread.java:662)