
Amestecuri
Authored by Casu Nicoleta
Chemistry
7th Grade
Used 26+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O soluție se obține prin
ardere
dilatare
dizolvare
rupere
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Soluția ce mai diluată are concentrația ...
5%
17%
21%
4%
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Soluția de apă cu sare se numește...
piatră vânătă
tinctură de iod
saramură
oțet
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Concentrația de oxigen din aer este ...
78%
100%
21%
12%
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
O metodă de separare folosită în laborator dar și în viața cotidiană este ...
ruginirea
filtrarea
fotosinteza
diluarea
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ca să reușești să separi sulf de pilitură de fier ai nevoie de ..
un coleg descurcăreț
o eprubetă
un cilindru gradat
un magnet
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Apa și uleiul sunt lichide ...
ce formează soluții
miscibile
nemiscibile
toxice
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