
Valența
Authored by Emilia-Dana Schiha
Chemistry
7th - 8th Grade
Used 24+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Capacitatea de combinare a atomilor unui element cu atomii altor elemente reprezintă .... elementului respectiv.
valența
covalența
electrovalența
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
IONII sunt particule încărcate cu sarcini electrice și provin din atomi prin...
cedare de electroni
acceptare de electroni
punere în comun de electroni
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Procesul de dirijare a ionilor dintr-un electrolit către electrozi și de neutralizare a lor se numește...
ionizare
covalență
electrovalență
electroliză
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Efectele curentului electric învățate la fizică și la chimie sunt:
efectul termic
efectul magnetic
efectul chimic
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Substanțele ionice în stare cristalizată pot fi
solide
lichide
gazoase
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Compușii ionici sunt
solubili în apă
insolubili în apă
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Molecula este cea mai mică particulă dintr-o substanță care
nu poate exista în stare liberă
poate exista în stare liberă
prezintă toate proprietățile substanței respective
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