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Cel - mai ingenios

Authored by Natalia Buhaniuc

Chemistry

8th - 9th Grade

Used 2+ times

Cel - mai ingenios
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Cel mai dur minereu conține atomi de

C

Fe

Si

Al

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Din ce gaz se formează gheaț uscată

CO

CO2

NO

N2

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Care substanțe formează urme albe pe cer la zborul avioanelor

H2O

CO2

O2

H2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Cel mai dens element

Os

Ti

Au

Al

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Care gaz are rolul de a steriliza apa

CO

CO2

Cl2

N2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Care acid se folosește în stomatologie pentru chituri de plombe

HCl

H3PO4

H2SO4

HNO3

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Care substanță este denumită ,, piatra iadului,,

NaCl

AgNO3

AlCl3

KI

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