BÀI TẬP VỀ KIM LOẠI PHÂN NHÓM CHÍNH NHÓM II (IIA)
1.
2
2
o
t
Ca C CaC
+ →
2.
2 2 2 2
2CaC HCl CaCl C H
+ → +
3.
( )
2 2 2 2
ó vách ngan
2
2
dpdd
c
CaCl H O Ca OH Cl H+ → + +
4.
( )
2
2
o
t
Ca OH CaO H O
→ +
5.
2 3

2CaCO HNO Ca NO CO H O+ → + ↑ +
10.
( )
2 3 3
2
2 2CaCl AgNO Ca NO AgCl
+ → + ↓
11.
3 2 2 2
2CaCO HCl CaCl CO H O
+ → + +
12.
2 3 3 2
Ca H CO CaCO H
+ → ↓ + ↑
13.
( )
2 2
2
2Ca H O Ca OH H
+ → + ↑
14.
( )
2 3 2
2du
Ca OH CO CaCO H O
+ → ↓ +
15.
( )
2 2 2

20.
( )
2 2 2
2
2CaOCl HCOOH HCOO Ca Cl H O
+ → + ↑ +
21.
( )
2 4 4
2
2HCOO Ca H SO CaSO HCOOH
+ → +
Để lâu ta có CaSO
4
.2H
2
O
22.
150
4 2 4 2 2
2 .2 2 . 2
o
C
CaSO H O CaSO H O H O
→ +
23.
2 2
dpnc
CaCl Ca Cl
→ +

3 3 2 2
2
o
t
Ca HCO CaCO CO H O
→ + ↑ +
30.
900
3 2
o
C
CaCO CaO CO
→ + ↑
31.
( )
2 3 2
2
CO Ca OH CaCO H O
+ → ↓ +
32.
3 2 2 2
2CaCO HCl CaCl CO H O
+ → + +
33.
( )
2 3 3
2
2 2CaCl AgNO Ca NO AgCl
+ → + ↓
34.

CaSO C CaS CO+ → +
39.
( )
3 4 3 4 2
2
3 2 3CaS H PO Ca PO H S
+ → + ↑
40.
( ) ( )
3 4 2 4 4 2 4
2 2
2 ( ) 2Ca PO H SO d CaSO Ca H PO
+ → ↓ +
Hoặc
( ) ( )
3 4 3 4 2 4
2 2
4 3Ca PO H PO Ca H PO
+ →
41.
( )
2 4 2 4 4 3 4
2
2Ca H PO H SO CaSO H PO
+ → ↓ +
42.
2 2
dpnc
MgCl Mg Cl
→ +

2 2MgCl NaOH Mg OH NaCl
+ → ↓ +
48.
( ) ( )
3 3 2
2 2
2 2Mg OH CH COOH CH COO Mg H O
+ → +
49.
( )
3 3 3 3
2
o
t
CH COO Mg MgCO CH COCH
→ +
50.
( )
2
2
o
t
Mg OH MgO H O
→ +
51.
2 4 4 2
MgO H SO MgSO H O
+ → +
52.
4 2 3 3 2 4