
Štvrťročka sekunda
Authored by Sylvia Martinkovičová
Chemistry
1st Grade
Used 1+ times

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16 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Čo je to kondenzácia?
premena pevného skupenstva na plynné
premena kvapalného skupenstva na plynné
premena kvapalného skupenstva na plynné
premena plynného skupenstva na kvapalné
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Pri vyparovaní sa:
voda v kvapalnom skupenstve mení na vodnú paru
vodná para sa mení na vodu v pevnom skupenstve
vodná para sa mení na vodu vkvapalnom skupenstve
ľad sa topí
3.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Vápnik:
stráca 2 elektróny, lebo má nízku hodnotu elektronegativity
získa 2 elektróny od prvku s vyššou hodnotou elektronegativity
stráca 4 elektróny
získa 6 elektrónov od prvku s vyššou hodnotou elektronegativity
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Vyber neexistujúci katión:
N+V
Cl+IV
C+IV
C+II
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Vyber správny názov pre S+IV:
siričitý katión
sulfid
siričitý anión
sírový katión
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Ktorý prvok nepatrí medzi prvky I.A skupiny?
N
Na
K
Li
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Ak chlór tvorí väzbu s prvkou s menšou hodnotou elektronegativity, elektróny
vznikne anión
1 elektrón získa
vznikne chlorid
vznikne chlórny katión
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