Amestecuri de substanțe. Soluții
Quiz
•
Chemistry
•
7th Grade
•
Practice Problem
•
Medium
Constantin Ichim
Used 619+ times
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un amestec omogen este ..
apa cu zahar
apa cu nisip
apa cu gheață
apa cu ulei
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soluția de apă cu sare se numește...
piatră vânătă
tinctură de iod
saramură
oțet
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soluția ce mai diluată are concentrația ...
5%
17%
21%
4%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O soluție se obține prin
ardere
dilatare
dizolvare
rupere
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Concentrația de oxigen din aer este ...
78%
100%
21%
12%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O metodă de separare folosită în laborator dar și în viața cotidiană este ...
ruginirea
filtrarea
fotosinteza
diluarea
7.
MULTIPLE CHOICE QUESTION
30 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
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