11
ANaHCO3 B Ca(OH)2 C NaOH D NaCl
12 3S+6KOH 2K2S+K2SO3+3H2O
AS KOH
B 3mol 4mol
C 2:1
D 3:2
13
A
BSiO2
C Na2SiO3 CO
2 H
2SiO3
DNaOH
14
A CO32 + 2H + =CO2+ H2O
B : Ca 2++2OH
+2HCO
3=CaCO
3+ 2H2O+CO
32
CFeCl 3 Fe3+ + Cu = Fe 2+ + Cu 2+
DAlCl 3 Al 3++3OH
= Al(OH) 3
15
ACu2+ BFe3+ CFe2+ DH+
16
A
B
C
D
17 4.48LCO2 3.36L ( )
( )
A3.2g B 4.8g C 5.4g D 6g
18
AHClO B Cl C Cl 2 D ClO
19
( )
AH2SO
4 B H
2O
2
CNaH D NH
3
20
A SO
2
B
C
D
21 ( )
A NaCl B C CO
2 D
22 Na2CO
3NaHCO
3
ANa2CO3 CO2 B NaHCO3 CO2
