
SOLUTII
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
MAGDALENA BĂCĂOANU
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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 BLANK QUESTION
20 sec • 1 pt
Solventul este de obicei in cantitate.........
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=
8.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Care este masa de solutie de concentratie 15% obtinuta prin dizolvarea a 180g sare in apa?
1300g
1100g
1200g
9.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Ce concentratie procentuala are solutia obtinuta prin dizolvarea a 80 g alcool pur in 240 g apa?
35%
15%
25%
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