A
H1 O16 Al 27 Mg 24 Cu64 Cr52 Cl35.5
5 60
1
A B C D
2 NA
A 22.4L NA
B 11.2 L 0.5NA
C1L2mol/L K 2S S2HS 2NA
D Zn NA 2NA
3
A Ba(NO3)2
SO42-
B KSCN
Fe3+
C NaOH
NH4+
D NaOH
SiO32-
4
NH 3+CO2+H2O+NaCl=NaHCO 3+NH
4Cl
A NH 3 HCl
B
C NH3CO2 NH3
CO2
D NaHCO3
5 XYZW X Y
