Soluții

Quiz
•
Chemistry
•
7th Grade
•
Hard
LAVINIA MISAILA
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amestecul format din ulei şi apă este:
un amestec eterogen;
o soluţie diluată;
o soluţie concentrata
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sarea de bucătărie nu este solubilă în:
saramură diluată
ulei alimentar;
apă
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cu creşterea temperaturii, cantitatea de zahăr care se dizolvă într-o anumită cantitate de apă:
crește
scade
zahărul nu se dizolvă în apă
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Concentraţia procentuală a unei soluţii care se obţine prin dizolvarea a 120 g
sare în 180 g apă?
40%
20%
10%
5.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Peste 250g CUSO4 se adugă 250g apă. Concentrația finală a soluției va fi:
47%
32%
23%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numărul de molide substanță dizolvați în 1,5 Kg NaCl, c=69% este:
16,66
10,5
0,05
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