v
T
C
V
�� �� �� ��
R
V
V
P
V
R
2
4MnO
�
2
3 4MnO
� 1
3
1
3 4MnO
� 2
3
1
3
2
3
2
3
1
3
3
4VO
�
2
6O
� 2
7O
�
1
a x�
4O
�
4O
�
2
4O
�
4O
�
2
2O
�
3NH
�
�
2 2x yd
� 2zd
�
A solu t i on of sodium m et al in l i qu id am m onia gener at es [N a(N H
1
2
7
2