Keemiline valem ja kovalentne side, 8. klass
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Annika Sakkarias
Used 17+ times
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11 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Mis on kovalentne side?
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Kuidas kovalentne side tekib?
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Märgi kovalentse sidemega ainete valemid.
KCl
CaCl2
H2O
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Märgi kovalentse sidemega ainete valemid (2p).
Li2O
N2
MgF2
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Millised ained on lihtained?
K2CO3
Cl2
Cu
FeS
O2
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Millised ained on liitained?
K2CO3
Cl2
Cu
FeS
O2
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Koosta molekulivalem, kui aine koosneb kahest süsiniku aatomist ja kuuest vesikinu aatomist.
NB! Kahjuks vastuse kirjutamisel alaindeks ei saa panna. Seetõttu võib kirjutada suure numbriga. Nt H2=H2
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