... Cõn bng chuyn dch theo chiu thun tng nhit B Cõn bng chuyn dch theo chiu nghch gim nng O2 C Cõn bng chuyn dch theo chiu thun gim ỏp sut h phn ng ~ 17 ~ D Cõn bng chuyn dch theo chiu nghch gim ... l A 38,93 gam B 103,85 gam C 25,95 gam D 77,86 gam THI TUYN SINH CAO NG NM 2009 Cõu 1: phõn bit CO2 v SO2 ch cn dựng thuc th l A nc brom B CaO C dung dch Ba(OH)2 D dung dch NaOH Cõu 2: Cht khớ ... PbS ngoi khụng khớ sau mt thi gian, thu c hn hp rn (cú cha mt oxit) nng 0,95m gam Phn trm lng PbS ó b t chỏy l A 95,00% B 25,31% C 74,69% D 64,68% THI TUYN SINH I HC, CAO NG NM 2007, Khi B Cõu...