Anorgaanilised ühendid igapäevaelus - 9.kl

Quiz
•
Chemistry
•
9th Grade
•
Easy
Used 14+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Milline järgnevaist EI OLE graniidis leiduv mineraal?
kaltsiit
kvarts
päevakivi
vilgukivi
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Vee karedust põhjustavad ____ ja ____ soolad.
kaltsiumi ja magneesiumi
naatriumi ja kaaliumi
mangaani ja kaaliumi
kloriidi ja karbonaat
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mis riigi rahvuskiviks on graniit?
Soome
Eesti
Rootsi
Norra
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mis riigi rahvuskiviks on paekivi?
Soome
Eesti
Rootsi
Norra
5.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
Millised järgmistest katioonidest ei põhjusta vee karedust?
H+
Na+
Ca2+
Mg2+
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Millist järgnevaist sooladest kasutatakse tööstuses veepehmendajana?
Na2CO3
CaCO3
MgSO4
H2CO3
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mis on katlakivi peamine koostisosa?
Na2CO3
CaCO3
MgSO4
H2CO3
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