90 100
H-1O-16C:12; N:14 S:32 Mg:24 K:39; Fe:56
42
21 2 42
1
CaCl2 HD
CH2O2C2H4O2C3H6O2C4H8O2
C60C70 2H22H3H
A B C D
2
NO2
A B C D
3
;
A. B. C. D .
4
A B C D
5XY RQ R X75%Q Y11.1%
R XY4 Q
AX3Y B XY
2 C X2Y3 D X3Y2
6 6.02 1023
AT 1 L pH=6 10-6NAOH
-
