Oxizi

Quiz

•

Chemistry

•

1st Grade

•

Hard

Diana Salagean

Used 58+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Sunt oxizi.....

CaCl2

CaO

CaSO4

CO2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se mai numește și var nestins.

CaO

Ca(OH)2

CaCO3

Ca

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

CaO + H2O = Ca(OH)2

Reacția de precipitare

Reacția de stingere a varului

Reacția de descompunere

Reacția de culoare

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Prin descompunerea termică a carbonatului de calciu se obține...

Ca

C

CaO și. CO2

Doi oxizi: unul de metal și unul de nemetal

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

MgO,. CaO,. Al2O3

Sunt oxizi de nemetal

Sunt oxizi de metal

Sunt acizi

Sunt baze

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Care din variante reprezintă oxizi de nemetal?

Na2O.,. MgO

CO2 , CO

CO ,. CaO

SO3,. CuO

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Oxidul de magneziu se poate obține prin...

Reacția magneziului cu oxigenul

Reacția magneziului cu clorul

Descompunerea carbonatului de magneziu

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