Ngày tải lên :
29/06/2014, 01:20
... HNO3 C HNO3, Cu(NO3)2, Ca3(PO4)2, H3PO4 D H2SO4, NaCl, KNO3, Ba(NO3)2 3+ + + Cõu 22: Cho cac ion: Fe , Ag , Na , NO3 , OH , Cl Cac ion nao sau õy tụn tai ụng thi dung dch? A Na+, Fe3+, Cl-, NO3- ... A NaHCO3, ZnO, Mg(OH)2 B NaHCO3, Ca(HCO3)2, Al2O3 C NaHCO3, MgO, Ca(HCO3)2 D Mg(OH)2, Al2O3, Ca(HCO3)2 Cõu 17: Khi hoa tan nc, chõt nao sau õy cho mụi trng co pH ln hn 7? A NH4Cl B Na2CO3 C NaHSO4 ... H2O, HCl, NaOH, NaCl, CH3COOH, CuSO4, HgCl2, Al(OH )3. Cỏc cht in li yu l: A H2O, NaCl, CH3COOH, Al(OH )3 B H2O, CH3COOH, CuSO4 C H2O, CH3COOH, Al(OH )3 , KOH D Al(OH )3, CH3COOH, H2O Cõu 16: Dóy gm...