evaluare sumativă clasa 7a
Authored by Ali russoi
Chemistry
1st - 10th Grade
Used 8+ times
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18 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
selectează substanțele simple
SO2
S
Cl2
H2O
Zn
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
selectează substanțele compuse
SO2
Al
H2CO3
H2
KMnO4
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Determină formula substanței
V II
P O
P2O5
P2O3
PO5
P2O
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determină formula substanței :
IV I
C H
C4H
CH1
CH4
C1H4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determină formula substanței :
IV II
S O
S2O3
SO2
S2O4
SO3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determină valența elementului zinc:
II
Zn O
I
II
III
IV
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determină valența elementului azot:
II
N2 O5
II
III
IV
V
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