
Cel - mai ingenios
Authored by Natalia Buhaniuc
Chemistry
8th - 9th Grade
Used 2+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cel mai dur minereu conține atomi de
C
Fe
Si
Al
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Din ce gaz se formează gheaț uscată
CO
CO2
NO
N2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Care substanțe formează urme albe pe cer la zborul avioanelor
H2O
CO2
O2
H2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cel mai dens element
Os
Ti
Au
Al
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Care gaz are rolul de a steriliza apa
CO
CO2
Cl2
N2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Care acid se folosește în stomatologie pentru chituri de plombe
HCl
H3PO4
H2SO4
HNO3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Care substanță este denumită ,, piatra iadului,,
NaCl
AgNO3
AlCl3
KI
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