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joc didactic

Authored by Mirela Mirela

Chemistry

8th Grade

Used 8+ times

joc didactic
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5 questions

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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 • Ungraded

reacția aluminiului cu oxizii unor metale mai ouțin reactive decât acesta este cunoscuta in tehnică sub denumirea de....

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OFF

5.

OPEN ENDED QUESTION

30 sec • Ungraded

reactia de neutralizare este reactia dintre un ...................și o ...............si se formeaza intotdeauna o...........si....................

Evaluate responses using AI:

OFF

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