... Khi lng ca mt on mch t nilon-6,6 l 27346 vC v ca mt on mch t capron l 17 176 vC S lng mt xớch on mch nilon-6,6 v capron nờu trờn ln lt l A 12 1 v 11 4 B 11 3 v 11 4 C 11 3 v 15 2 D 12 1 v 15 2 Cõu 387 Cho ... 1, 6 ,1, 1 ,1, 2 D 1, 4,2 ,1, 2 ,1 Cõu 8.Cho phn ng húa hc sau: As2S3 + KNO3 -> H3AsO4 + H 2SO4 + NO + H2O A 3, 28, 16 , 6, 9, 28 B 6, 14 , 18 , 12 , 18 , 14 C 6, 28, 36, 12 , 18 , 28 D 6, 14 , 36, 12 , 18 , 14 Cõu 9.Cho ... Cr2 (SO4 )3, HNO3 D K 2SO4 , Cr2 (SO4 )3, HNO3, H2O Cõu 16 .Hon thnh cỏc phng trỡnh phn ng húa hc sau: SO2 + KMnO4 +H2O -> cỏc cht l : A K 2SO4 , MnSO4 B MnSO4, KHSO4 C MnSO4, KHSO4, H 2SO4 D MnSO4, K 2SO4 ,...