cho mot kim loai chua biet hoa tri tac dung voi 200ml NaoH 0,5M , biet rang kim loai khoi luong kim loai do dung la 200g . Hay xac dinh ten kim loai do va viet phuong trinh .
taitu
datacnhang1
BAI NAY QUA MO HO DO
shang
lam` on cho tui them du~ kien di neu' ko thi` chac chi? co' mo` ra thoi ko lap luan chac chan duoc dau.