đề thi học kì 2 môn hóa

ĐỀ KIỂM TRA HỌC KÌ I NĂM HỌC 2011- 2012
MÔN: HÓA HỌC 8
ĐỀ 3:
Câu 1:  (2 điểm)
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 !
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
Câu 2:  (2 điểm)
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Câu 3:  (3 điểm)
=>5?@%(ABCDEF(*-EFGDEF$HA0%
2/.%5?I1J6C1458.5?KLE
Câu 4:  (3 điểm)
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ĐÁP ÁN VÀ BIỂU ĐIỂM CHẤM ĐỀ KIỂM TRA HỌC KÌ I NĂM HỌC 2011- 2012

MÔN: HÓA HỌC 8
Đ Ề 3
Câu 1:  (2 điểm)
8U12VE*W2
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Câu 2:  (2 điểm)
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Câu 3:  (3 điểm)
X+C1458U1(ABC3.K8.5?)

KLEDE
LD 
KEE
Cu
m g= =
 E*W2
KLE-E
- 
KEE
S
m g= =
 E*W2

KLE LD - LD 
O
m g= − + =
 E*W2

 XGC8.(ABYU1(ABC3.K8.5?)

LD
K 
LD
Cu
n mol= =
 E*W2

-
K 
-
S
n mol= =
 E*W2
(G E*W2
Câu 4:  (3 điểm)
GC8.
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-
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,-$
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 E*W2
#."#K8.)-8.)-8. E*W2
#.2Z1)-8.)D8.)D8. E*W2
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