M
meou_a10


cho 200ml dd HCl tac dung vua du voi 28,4 g hon hop 2 muoi cacbonat cua 2 lim loai hoa tri 2 nguoi ta thu 6,72 lit khi o dktc
tinh khoi luong cac muoi thu dc sau phan ung
tinh khoi luong cac muoi thu dc sau phan ung