
LEGĂTURI CHIMICE
Authored by Ionut Boștinaru
Chemistry
9th Grade
Used 5+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Substanțele ionice se caracterizează prin:
masă moleculară mare
conductibilitate electrică în soluție sau topitură
temperatură de topire foarte scăzută
prezența lor în toate stările de agregare
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Legătura ionică se realizează prin:
respingere între ioni de semn contrar
atracție de ioni de același semn
atracție de ioni de semn contrar
respingere între ioni de același semn
3.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Când sodiul metalic vine în contact cu clorul gazos se produce o reacție puternic....................
4.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
Legătura de hidrogen se stabilește...................
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Structura gheții este tetraedrică, iar golurile formate în cristalul de gheață îi conferă acesteia o densitate mai mare decât a apei lichide.
adevărat
fals
6.
OPEN ENDED QUESTION
45 sec • Ungraded
Care atomi pot participa la formarea legăturii triple?
Evaluate responses using AI:
OFF
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Substanța din imagine conține electroni neparticipanți?
nu
da
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