
Vodík, kyslík
Authored by Lucia Vaterková
Biology
8th Grade
Used 12+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vyber správnu odpoveď. Vodík sa nachádza v periodickej tabuľke prvkov:
1.skupina, 1.perióda
1. skupina, 2.perióda
2.skupina, 1.perióda
2.skupina, 2.perióda
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vyberte pravdivé tvrdenia o vodíku:
je bezfarebný, horľavý plyn
najľahší plyn vo vesmíre
má protónové číslo 2
vzniká rozkladom hypermangánu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vodík uskladňujeme v tlakových nádobách označených ...
červenou farbou
modrou farbou
bielou farbou
čiernou farbou
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Prečo sa vodík viac nepoužíva na plnenie vzducholodí?
s kyslíkom tvorí výbušnú zmes
je ťažší ako vzduch
je ľahší ako vzduch
so vzduchom tvorí nereaktívnu zmes
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aké chemikálie by si použil na prípravu vodíka?
sodík s vodou
hypermangán
peroxid vodíka a burel
ocot a sódu bikarbónu
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Vyber pravdivé tvrdenia o kyslíku:
značka V
protónové číslo 8
na poslednej vrstve má 6 elektrónov
nachádza sa v 2.perióde
patrí medzi nekovy
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ako nazývame formu kyslíka, ktorú tvorí trojatómová molekula?
ozón
kyslík
voda
peroxid vodíka
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