
oxigenul
Authored by Merineanu Tatiana
Chemistry
8th Grade
Used 11+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
Oxigenul este un gaz
mai greu decât aerul
insolubil în apă
cu miros specific
2.
MULTIPLE SELECT QUESTION
0 sec • 1 pt
modificări alotropice ale elementului oxigen sunt
3.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
in imaginea data sulful manifesta valenta egala cu:
6
2
4
1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
V II
P O
în formula data indicile oxigenului este:
2
5
10
5.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
suma valentelor in formula alaturata este egala cu:
3
2
6
8
6.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
oxigenul are valenta constanta egala cu:
II
I
VI
7.
MULTIPLE CHOICE QUESTION
0 sec • 1 pt
2
3
5
7
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