Proprietățile fizice ale substanțelor se referă la însușirile și transformările acestora care au loc

Chimie recapitulare clasa 7

Quiz
•
Chemistry
•
7th - 8th Grade
•
Hard

Emilia-Dana Schiha
Used 70+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
cu modificarea compoziției
fără modificarea compoziției
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Amestecul este rezultatul punerii în comun a două sau mai multe substanțe între care
nu au loc fenomene chimice
au loc fenomene chimice
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Amestecul apă+zahăr se poate separa prin
decantare
filtrare
cristalizare
distilare
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Simbolul fosforului este
F
Fo
Ff
P
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Câte grame reprezintă 2 moli de magneziu (AMg=24)
12 g
24 g
48 g
144,552*1023 g
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Cele mai importante particule subatomice sunt
protonii
neutronii
electronii
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Atomul elementului cu Z=3 și A= 7 conține
3 p+, 4 n0, 3 e-
4 p+, 4 n0, 3 e-
3 p+, 4 n0, 4 e-
4 p+, 3 n0, 4 e-
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