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Hrom i mangan

Authored by Loreana Nedeljković

Chemistry

9th - 12th Grade

12 Questions

Used 1+ times

Hrom i mangan
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

da li je hrom prelazni metal?

da

ne

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

koje boje je hrom?

plave

crvene

srebrnastosive

crvenkastobraon

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

koja su svojstva hroma?

visoka temperatura topljenja

tvrd

mek

niska temperatura topljenja

ima magnetna svojstva

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

koje boje je mangan?

žute

sivobele

narandzaste

srebrnastosive

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

mangan se u reakciji sa razblazenim kiselinama lako oslobadja vodonika, gradeci soli u kojima je oksidacionog stanja +2

tačno

netačno

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

koje oksidacione brojeve moze imati hrom u svojim jedinjenjima?

+2

+1

+3

-2

+6

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

koje oksidacione brojeve moze imati mangan u svojim jedinjenjima?

-1

+2

+4

+3

+7

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