
Vzácné plyny a halogeny
Authored by Věra Vocilková
Chemistry
University
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký prvek nepatří mezi vzácné plyny?
Radon
Helium
Radium
Xenon
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Který vzácný plyn je radioaktivní?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Který vzácný plyn bývá v červených zářivkách?
Krypton
Xenon
Neon
Argon
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co znamená, že jsou vzácné plyny inertní?
Slučují se se všemi prvky.
Neslučují se s jinými prvky.
Slučují se pouze s kovy.
Slučují se pouze s uhlíkem.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Jakou barvu mají krystalky jodu?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Co vzniká reakcí: 3 Cl2 + 2 Fe -->
3 FeCl2
2 FeCl3
6 FeCl
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Při reakcí halogenvodíkových kyselin s kovy se uvolňuje vodík. Jaké jsou tyto kovy?
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