electron.
8
11
15
Trang 25 4s
5 5s
14 5d
5 6s
14 6d
5 7s
5 4s
5 5s
14 5d
5 6s
14 6d
5 7s
6 4s
6 5s
14 5d
6 6s
14 6d
6 7s
7 4s
7 5s
14 5d
7 6s
14 6d
7 7s
8 4s
8 5s
14 5d
8 6s
14 6d
8 7s
2 2s
2 2p
2 2p
10 4s
2 p
10 5s
2 p
10 6s
2 p
2 2s
2 2p
2 2p
10 4s
2 p
10 5s
2 p
10 6s
2 p
2 2s
2 2p
2 2p
10 4s
2 p
10 5s
2 p
10 6s
2 p
2 2s
2 2p
2 2p
10 4s
2 p
10 5s
2 p
10 6s
2 p
10 4s
10 5s
14 5d
10 6s
14 6d
10 7s
10 4s
10 5s
14 5d
10 6s
14 6d
10 7s
H 11s
Li 211s2s
K [A4s
B 221s2s
C [A4s
B [X6s
R [R7s
1 4s
1 5s
1 6s
1 7s
2 4s
2 5s
14 5d
2 6s
14 6d
2 7s
3 4s
3 5s
14 5d
3 6s
14 6d
3 7s
H 11s
H 2
Trang 32 + CuO Cu + H2O
0 +2 0 +1
– 2.1e
+2e
cho – O
–
–
trong các quá trình
–
–
2
2
Trang 4Cách 1:
–
–
–
–
A + B C
A B + C
AB + C AC + B
AB + C D A D + CB
Cách 2:
1
2
Trang 54
5
(A
(B
(C
(D
6
7
8
9
o
o
t
Trang 6A 3 Fe(NO3)3 + NO + H2O.
đã như
nitơ đã như
E
(A
(B
(C
(D
(A
(B
(C
(D
G
t o
t o
t o
Trang 7I
Trang 8–
–
–
–
2
x 2
x 5
2
1
Cl
Trang 9VD2: 3 KCl + O2
– B1, B2, B3:
o
t
o
t
2
x 3
2
o
t
– B1, B2, B3:
o
t
o
t
0
5
x 5
x 1
0
5
o
t
KL HNO 3 (H 2 SO 4 ) H 2 O
Trang 10J
K
3
M
N
t lư ng axit dư, c (b) Tính x
t o
t o
Trang 11VD4:
Xét (1):
Xét (2):
3)
TH1:
TH2:
TOPPER Chi chú
4FeS2 + 11O2 2Fe2O3 + 8SO2
2 2
2
22 0
2
2
x 11
x 2
Trang 12KL + HNO 3 + H 2 O
VD6:
NO , NO, N O
N , NH NO
2
)
2
n : n 1 : 2
x 3
x 7
VD7:
x 1
x 9
Trang 13Q
2
2
Trang 14x
2y
3 x
x
x (3x – 2y)
x 3
3FexOy + (12x –2y)HNO3 3xFe(NO3)3 + (3x – 2y)NO + (6x – y)H2O
2y
3 x
x
S
Trang 159 +2 Fe+3 + 1e
(b)
t o
t o
3 2 Fe
0 2 Cl
1 2 N
NO
Câu
9
Câu
3 2
Trang 16M (a) Cl2 2O
t o
t o
t o
(b) x = 0,9
t o
2
2