CHO 20G HH MG,FE T/D HCL DU THU 11,2( L )H2(DKTC).KHOI LUONG MUOI T...

3) Cho 20g hh Mg,Fe t/d HCl du thu 11,2( l )H

2

(dktc).khoi luong muoi tao thanh sau phan ung la.

A.35,5 g B.55,5g C.5,5g D.54,5g