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oxigenul

Authored by Merineanu Tatiana

Chemistry

8th Grade

Used 11+ times

oxigenul
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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

Media Image

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

Media Image

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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