Kemija - Kalcij i kalcijevi spojevi Quiz

Quiz
•
Chemistry
•
8th Grade
•
Hard
katarina sabolić
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je atomska struktura kalcija?
10 protona i 10 elektrona
20 protona i 20 elektrona
15 protona i 15 elektrona
30 protona i 30 elektrona
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako kalcij reagira s vodom?
Kalcij reagira s vodom stvarajući kalcijev karbonat i kisik
Kalcij reagira s vodom stvarajući kalcijev klorid i vodik
Kalcij reagira s vodom stvarajući kalcijev oksid i kisik
Kalcij reagira s vodom stvarajući kalcijev hidroksid i vodik
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je kemijska formula kalcijevog karbonata?
CaCl2
NaCl
CaCO3
CaO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako se naziva kalcijev karbonat u prirodi?
kalcijev klorid
kalcijev sulfat
kalcijev oksid
kalcit
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je kemijska formula kalcijevog hidroksida?
Ca(OH)2
Ca(OH)3
Ca2OH
CaOH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kako se naziva kalcijev hidroksid u svakodnevnom životu?
živo vapno
gašeno vapno
vapnena voda
vapneno mlijeko
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koja je kemijska formula kalcijevog oksida?
CO
Ca2O3
CaO
Ca2O
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