
joc didactic

Quiz
•
Chemistry
•
8th Grade
•
Easy
Mirela Mirela
Used 8+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
reactia de descompunere a apei oxigenate are loc mult mai......in prezenta dioxidului de mangan.
incet
violent
repede
tare
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
catalizatorii sunt substante care........viteza reactiei chimice si se regasesc.......................la sfarsitul reactiei chimice.
micsoreaza/neschimbati
maresc/neschimbati
maresc/modificati
,micsorează/modificati
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
reactiile exoterme au loc cu....
degajare de caldură
absorbție de caldură
fara modificare de temperatura
foarte incet
4.
OPEN ENDED QUESTION
3 mins • 1 pt
reacția aluminiului cu oxizii unor metale mai ouțin reactive decât acesta este cunoscuta in tehnică sub denumirea de....
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5.
OPEN ENDED QUESTION
30 sec • 1 pt
reactia de neutralizare este reactia dintre un ...................și o ...............si se formeaza intotdeauna o...........si....................
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