
VODA
Authored by Martina Lubojacká
Science
1st Grade
Used 22+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Kolik procent vody je obsaženo průměrně v těle dospělého člověka?
20
80
60
90
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Které skupenství vody má schopnost sublimace?
vodní pára
led
tekutá voda
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Mezi molekulami vody v kapalném skupenství vznikají:
kovové vazby
Van der Waalsovy síly
vodíkové můstky
kovalentní vazby
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Přechodná tvrdost vody je způsobena obecně:
sírany
hydrogenuhličitany
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Hydráty jsou krystalické látky, které mají ve svých strukturách navázány molekuly tzv. krystalové vody.
ne
ano
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Modrá skalice je:
ZnSO4 . 7H2O
CuSO4 . 5H2O
FeSO4 . 7H2O
CaSO4 . 2H2O
7.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
Funkci pohlcování vzdušné vlhkosti (hygroskopické vlastnosti) má:
desikant
emetikum
antiseptikum
desinficient
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