Paharul Berzelius este:
CorpSubstantaProprietatiFenomene

Quiz
•
Chemistry
•
7th Grade
•
Medium
DOINIŢA PĂDURARU
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Care din cuvintele de mai jos reprezintă o substanță?
Creion
Eprubetă
Azot
Spatula
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Este un fenomen fizic:
Carbonizarea zahărului
Dilatarea șinelor de tren
Arderea magneziului
Ruginirea fierului
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Un cui de fier este supus unor transformări chimice prin:
îndoire
rupere
magnetizare
ruginire
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Substanţele obţinute în urma vaporizări:
îşi modifică compoziţia
îşi modifică starea de agregare
au aceeaşi compoziţie cu cele iniţiale
se transformă în substanţe cu proprietăţi noi
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Care din următoarele exemple reprezintă proprietăţi chimice:
lămâia are gust acru
şinele de tramvai se dilată la cald
alcoolul arde la apropierea de un băţ de chibrit aprins
esenţele din fructe au miros plăcut
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Arderea zahărului reprezintă:
un fenomen chimic
un fenomen fizic
un fenomen biologic
o proprietate fizică a zahărului
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