... (1); C2H5NH2 (2); (C2H5)2NH (3); NaOH (4); NH3 (5) Trt t tng dn tớnh baz (t trỏi qua phi) ca cht trờn l A (1), (5), (2), (3), (4) B (1), (2), (5), (3), (4) C (1), (5), (3), (2), (4) D (2), (1), ... dung dch cú cựng nng mol: (1) H 2NCH2COOH, (2) CH3COOH, (3) CH3CH2NH2 Dóy xp theo th t pH tng dn l: A (2), (1), (3) B (3), (1), (2) C (1), (2), (3) D (2), (3), (1) 152 Ancol v amin no sau õy cựng ... ion sau: + + 2+ 2+ (1) Na , Cl , HCO3 , SO ; (2) K , Mg , HCO3 ,SO (3) Ca , Cl , HCO3 Mu nc cng l: A (1), (2) B (1), (3) C (2), (3) D (1), (2), (3) Cõu 17: Nguyờn tc lm mm nc cng l lm gim...