某密闭容器中有100 g氧气和足量的过氧化钠，向其中充入5 g CO和H 2的混合气体后，电火花点燃，反应足够长时间后，容器内气体的质量为(   )

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19973' and id < 1737911 and id<>'1737911' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='19973' and id > 1737911 and id<>'1737911' order by id asc limit 5