I
i_love_lee_min_ho
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Cho 4 coc chua lan luot cac dd:
+Nuoc mem
+Nuoc cung toan phan
+nuoc cung vinh cuu
+nuoc cung
+nuoc cung tam thoi
Biet cac dieu kien co du,can dung them
A.NaCl hoac Na2CO3
B.NaHCO3
C.NaHCO3 hoac Na2CO3
D.Ca(OH)2 hoac Na2CO3
viet pt chung minh.
em cam on nhieu
+Nuoc mem
+Nuoc cung toan phan
+nuoc cung vinh cuu
+nuoc cung
+nuoc cung tam thoi
Biet cac dieu kien co du,can dung them
A.NaCl hoac Na2CO3
B.NaHCO3
C.NaHCO3 hoac Na2CO3
D.Ca(OH)2 hoac Na2CO3
viet pt chung minh.
em cam on nhieu