
CHE - Obecná chemie
Authored by A. O.
Chemistry
10th Grade
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mezi chemicky čisté látky patří
emulze
aerosol
sloučeniny
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mezi organické sloučeniny nepatří
KOH
CH3OH
HCHO
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Koloidní směsi mají velikost částic
pod 10-9 m
10-9 - 10-7 m
nad 10-7 m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dělení látek na základě různé teploty varu se nazývá
krystalizace
extrakce
destilace
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sublimace je dělení látek na základě přechodu skupenství
s --> l
s --> g
g --> l
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cl- je anion
chloridový
chlorný
chlorečnanový
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chemicky čistá látka složená z atomů stejného protonového čísla se označuje jako
kvark
prvek
sloučenina
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