... Mg(OH )2, Ca(OH )2, Sr(OH )2, Ba(OH )2 B / Ca(OH )2, Mg(OH )2, Ba(OH )2, Sr(OH) C / Sr(OH) 2, Ca(OH )2, Mg(OH )2, Ba(OH )2 D / Ba(OH )2, Sr(OH) 2, Ca(OH )2, Mg(OH )2 Cõu : Cho cỏc cht: Khớ CO2 (1), dd Ca(OH )2 ... Fe + 4H+ + 2NO3 - Fe2+ + 2NO + 2H2O C/ Fe + 4H+ + NO3 - Fe3+ + NO + 2H2O D/ Fe + 2H+ Fe2+ + H2 Cõu 12 : Hũa tan hon ton 5,6 g bt Fe dd H2SO4 loóng d thu c dd A phn ng ht vi mui Fe2+ dd A cn ... 14: Chn phn ng ỳng: A 2C6H5ONa + CO2 + H2O 2C6H5OH + Na2CO3 B C2H5OH + NaOH C2H5ONa + H2O C C6H5OH + HCl C6H5Cl + H2O H2SO4 , t0 D C6H5CH2-OH + CH3COOH CH3COOCH2C6H5 + H2O AMIN Cõu 1: Vi s...