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Sekunda

Authored by Sylvia Martinkovičová

Chemistry

1st Grade

Used 2+ times

Sekunda
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10 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Síra môže stratiť

1 elektrón

3 elektróny

6 elektróny

4 elektróny

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ako sa volá ión N+V.

dusičný katión

dusičný anión

dusitý katión

dusný katión

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Akú značku má antimón?

Sb

As

An

At

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aké oxidačné číslo má kyslík v oxide?

-II

-VI

+VI

+IV

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Názov iónu Cl-I.

chlórny katión

chloritý katión

chlorid

chlorečný katión

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ktorý prvok I.A skupiny nie je kov.

vodík

lítium

sodík

draslík

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ktorý prvok má najväčšiu elektronegativitu?

F

P

Cl

He

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