
Kyslík
Quiz
•
Chemistry
•
9th Grade
•
Practice Problem
•
Medium
Eva Kovacova
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Aká je chemická značka kyslíka?
K
O
Ky
Ox
Answer explanation
Kyslík - Oxygenium - O
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Koľko elektrónov má atóm kyslíka v základnom stave?
6
7
8
9
Answer explanation
Kyslík má protónové číslo 8, čiže má v základnom stave 8 protónov a rovnako aj 8 elektrónov
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ktorý plyn tvorí spolu s kyslíkom hlavnú zložku vzduchu?
vodík
oxid uhličitý
hélium
dusík
Answer explanation
Kyslík tvorí 21% vzduchu a dusík 78%, zvyšok pripadá na oxid uhličitý, hélium a iné plyny.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ako sa nazýva molekula zložená z dvoch atómov kyslíka?
molekulový kyslík
dioxid
ozón
oxid
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ktorý z nasledujúcich procesov produkuje kyslík ako vedľajší produkt?
horenie kovov
dýchanie
fotosyntéza
spaľovanie
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Aké je skupenstvo kyslíka pri izbovej teplote a normálnom tlaku?
kvapalné
plynné
tuhé
plazma
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ktorá kyselina patrí medzi kyslíkaté kyseliny?
kyselina sírová
kyselina chlorovodíková
kyselina bromovodíková
kyselina sírovodíková
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