Este substanță pură:
Amestecuri. Metode de separare .

Quiz
•
Chemistry
•
7th Grade
•
Hard
marlena dolis
Used 32+ times
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
apa distilată
apa potabilă
apa minerală
apa de mare
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se poate separa prin cristalizare amestecul:
apă- ulei
apă- sare de bucătărie
apă- piatră vânătă
apă- praf de cretă
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decantarea este o metodă de separare a :
amestecurilor omogene
amestecurilor solide
amestecurilor gazoase
amestecurilor eterogene
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Distilarea este o metodă de separare a :
amestecurilor solide
amestecurilor omogene lichide
amestecurilor eterogene solide
nu este o metodă de separare.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Imaginea prezintă o instalație de
decantare
filtrare
distilare
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Imaginea prezintă:
o bază de tratament
o stație de cristalizare a sării de bucătărie
o stație de pompare a apei potabile
o stație de epurare a apelor uzate
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Amestecul ale căror componente se pot separa prin filtrare este:
apă cu piatră vânătă
apă cu zahăr
apă cu alcool etilic
apă cu praf de cretă
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