valenta dupa formula chimica

Quiz
•
Chemistry
•
7th Grade
•
Hard
Aliona Tcacenco
Used 8+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
In formula NaCl, clorul are valenta egala cu:
1
2
3
4
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
in imaginea data sulful manifesta valenta egala cu:
6
2
4
1
3.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
azotul di imaginea alaturata manifesta valenta :
1
2
3
5
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
V II
P O
in formula data indicele oxigenului este:
2
5
10
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
II II
Fe O
In formula data oxigenul are indicele egal cu :
2
1
4
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
suma valentelor in formula alaturata este egala cu:
3
2
6
8
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
oxigenul are valenta constanta egala cu:
II
I
VI
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