Teme: Voda i  Zrak

Teme: Voda i Zrak

7th Grade

21 Qs

quiz-placeholder

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Teme: Voda i  Zrak

Teme: Voda i Zrak

Assessment

Quiz

Chemistry

7th Grade

Hard

Created by

Dinka Kaluđer

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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reagens za dokazivanje vode je?

bakrov (II)sulfat

modra galica

plavi lakmus papir

crveni lakmus papir

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pri kojoj se temperaturi uz normalan atmosferski tlak voda ledi( kristalizira)?

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Koja voda ima najveću gustoću ,te je u njoj lakše plivati?

vodovodna voda

morska voda

jezerska voda

riječna voda

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

U kojem omjeru nastaju vodik i kisik procesom elektrolize vode?

1:2

2:2

2:1

3:1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Na kojoj nadmorskoj visini će vrelište vode biti najviše?

200 m

1 000 m

3 000 m

6 500 m

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elektroliza je ?

spontan i endoterman proces

spontan i egzoterman proces

nespontan i endoterman proces

nespontan i egzoterman proces

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Koja svojstva opisuju vodik?

plin,teži od zraka, ne gori, ali podržava gorenje

plin lakši od zraka, zapaljiv, nije otrovan

žutozeleni plin,otrovan

inertan plin, lakši od zraka

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