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Kemijske formule

Authored by Natasa Bosilj

Chemistry

1st Grade

Used 28+ times

Kemijske formule
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11 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Molekula vodika je

H2
H
2H

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

U molekuli vode, H2O, je

1 atom vodika i 1 atom kisika
1 atom vodika i 2 atoma kisika
2 atoma vodika i 1 atom kisika 
2 atoma vodika i 2 atoma kisika

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Reaktanti su tvari koje izlaze iz kemijske reakcije

DA
NE

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Metan je

NH3
CH4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Atom sumpora označavamo sa:

N

S

1S

1N

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Koja je kemijska formula aluminijeva oksida?

Al2O2

Al2O3

AlO

Al3O2

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Koja kemijska jednadžba je ispravna?

Mg + O → MgO

Mg2 + O2 → 2MgO

Mg + O → Mg2O

2Mg + O2 → 2MgO

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