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Otopine

Authored by Vesna Jeremić

Chemistry

7th Grade

Used 4+ times

Otopine
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Otopine su:

Homogene smjese

Elementarne tvari

Kemijski elementi

Heterogene smjese

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kisela otopina je:

Otopina sode bikarbone

Alkohol etanol

Sok od limuna

Otopina amonijaka

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Indikatori za dokazivanje lužina su:

univerzalni lakmus papir

Crveni lakmus papir

Metiloranž

Bakrov (II) sulfat

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Bakrov (II) sulfat je reagens za dokazivanje

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

U vodi se otapa:

kreda

kuhinjska sol

ulje

benzin

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