
Oxizi
Authored by Diana Salagean
Chemistry
1st Grade
Used 58+ times

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10 questions
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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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