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SOLUTII

Authored by MAGDALENA BĂCĂOANU

Chemistry

7th Grade

Used 15+ times

SOLUTII
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9 questions

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1.

MULTIPLE SELECT QUESTION

10 sec • 1 pt

Solutiile sunt amestecuri:

omogene

eterogene

ambele variante

2.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

Solutia care contine o cantitate mica de dizovat, este o solutie:

concentrata

diluata

saturata

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Solubilitatea depinde de:

temperatura

presiune

natura componentilor

4.

FILL IN THE BLANKS QUESTION

20 sec • 1 pt

Solventul este de obicei in cantitate (a)  

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Concentratia in procente de masa a unei solutii reprezinta cantitatea de substanta dizolvata in:

100 g apa

100g solutie

ambele variante

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Dizolvarea este influentata de:

temperatura solutiei

agitarea componentelor

ambele variante

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Formula de calcul a concentratiei procenuale este: c=

 ms100md\frac{\text{ms}\cdot100}{\text{md}}  

 md100ms\frac{md\cdot100}{ms}  

 md+100ms\frac{md+100}{ms}  

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