
"Základy chemických prvkov"
Authored by Jana Vavreková
Science
1st - 5th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aké je skupenstvo fluóru za normálnych podmienok?
Plyn
Kvapalina
Tuhá látka
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ktorý halogén má červenohnedú farbu?
Jód
Bróm
Fluór
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prečo sa jód sublimuje?
Má slabé medzimolekulové sily.
Má vysoký bod topenia.
Je veľmi reaktívny.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ktorý halogén je najreaktívnejší?
Fluór
Chlór
Jód
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aká je elektrónová konfigurácia fluóru?
1s22s22p5
1s22s22p6
1s22p6
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aký produkt vzniká pri reakcii chlóru s brómidom draselným?
KCl a Br2
KBr a Cl2
KCl a HBr
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aký význam má kyselina chlorovodíková (HCl) v ľudskom organizme?
Podporuje trávenie.
Neutralizuje kyseliny.
Poskytuje energiu.
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