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test

Total questions: 4

Worksheet time: 2mins

Name
Class
Date
1.

koloko je 1+1

a)

2

b)

3

c)

4

d)

5

2.

Koji su od navedenih elemenata metali?

a)

Azot

b)

Aluminijum

c)

Bakar

d)

Ugljenik

e)

Kiseonik

3.

U kojem jedinjenju azot ima elektrovalencu +4?

a)

N2O3

b)

NO2

c)

N2O

d)

N2O5

4.

Označiti baze:

a)

H2CO3

b)

Mg ( OH )2

c)

NaO

d)

Mgo

e)

Al(OH)3

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