7.
A
8.
C
9.
D
10.
D
1 1.
B
12.
C
13.
B
26
. (
12
Points, 2 points for each vacancy.
)
(1)(2 points)
(If the writing is not standardized, deduct points as appropriate)
(2)4
%
(2 points)
(3) proceeding in the positive reaction direction; (2 points)
& lt
K
(2 points)
(4)AC(2 points, 1 point has only one correct choice, and multiple choices and wrong choices do not add points)
(5) unchanged
(2 points)
27.
(
16
Scores [(6)(7) 3 points for each small question, and the remaining 2 points]
)
(1) So
2
(2)2H
+
S
→H
S
H
(3) Aluminum
2
O
three
(4) Propyl (sodium
+
)& gtC(S
2-
)>c (Oh
-
)& gtC(HS
-
)& gtC(H
+
)
(5)S
2-
+H
2
O
Hand-held Handset
-
+Oh
-
(6)3Al
3+
+3S
2-
+6 hours
2
O=2Al(OH)
three
↓+3H
2
S↑
(7)2H
2
S+SO
2
=3S↓+H
2
O
28.
(
15
minute
)
[(2)
3 points for the small question, and 2 points for the rest]
Add iron
2+
Oxidation to iron
3+
6Fe
2+
+3ClO
-
+3H
2
O=2Fe(OH)
three
↓+
4Fe
3+
+3Cl
-
Or 2Fe
2+
+ClO
-
+2H
+
=2Fe
3+
+Cl
-
+H
2
o；
promote
aluminium (Al)
three
+
、
Continuing education (UK)
three
+
about
Hydrolysis.
(2) beaker, funnel and glass rod
(3) Iron
3+
+
three
Suprachiasmatic Nucleus
-
=
Iron (SCN)
three
(4)CaSO
four
2H
2
O
or
Caso
four
prevent
MgSO
four
When the temperature decreases, crystals precipitate.
high-temperature
high-temperature
35.( 15
minute
)( 1
)
Intermittent (2 points)
Heat dissipation (2 points)
(2)
Soda water (2 points)
natrium
2
Commander (commanding officer)
three
+silica
2
natrium
2
SiO
three
+CO
2
CaCO
three
+silica
2
Casio
three
+CO
2
(3 points)
(3)
Reinforcement (2 points)
High strength, light weight, corrosion resistance, impact resistance and good insulation performance. (Reasonable answer) (2 points)
(4)b
C(2 points)
36.
(15)
[(5)
65438+ 0 points for each small question, and 2 points for the rest]
( 1) 1
2
2s
2
2p
six
3s
2
Methoxyaromatic mustard
2
(2) Molecules
(3)6,
1:2
(4)4,
1: 1(5)sp
three
,
sp
2,
seven
37.
(15)
[( 1)
65438+ 0 points for small questions, and the remaining 2 points]
H
H
( 1)H-C=C-H
Wow!
Wow!
(2) polycondensation reaction; Substitution reaction;
(3)
;
Terephthalic acid; Sodium hydroxide aqueous solution
catalyst
△
(4)
(5)CH
2
BrCH
2
Bromine +2 sodium hydroxide
→
Knights of Honor
2
OHCH
2
OH+2NaBr