Substanțele alcătuite din atomii diferitor elemente chimice se numesc ...

Compozitia substantei si legatura chimica

Quiz
•
Chemistry
•
7th Grade
•
Hard

Bulgaru Tattiana
Used 14+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
substanțe simple
substanțe compuse
molecule
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Molecula de apă este formată din
doi atomi de oxigen și un atom de hidrogen
doi atomi de hidrogen și doi atomi de oxigen
doi atomi de hidrogen și un atom de oxigen
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Elementul chimic oxigen are valența
I
II
III
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Masa moleculară relativă a substanței CH4 este egală cu ...
12
14
16
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Legarea atomilor prin forțe de atracție se numește
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Proprietatea atomilor unui element de a atrage spre ei electronii de la atomii altor elemente se numește
legătură chimică
electronegativitate
valență
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Elementul cu cea mai mare electronegativitate este
oxigenul
clorul
fluorul
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