Reactii chimice
Interactive Video
•
Chemistry
•
8th Grade
•
Hard
Laurențiu Cotoc
FREE Resource
2 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
Ce este o reacție chimică?
un fenomen fizic
un fenomen chimic
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Ce legi respectă fiecare reacție chimică?
(răspuns multiplu)
Legea conservării maselor
Legea conservării nr de atomi
Legea gravitației
Legile mecanicii
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