
Oxizi
Authored by Andreea C
Chemistry
7th Grade

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce este un oxid?
Un compus format din două metale
Un compus format din oxigen și un alt element
Un compus binar cu oxigen, unde oxigenul are un număr de oxidare de -2
O acidă care conține oxigen
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce se numește compusul CuO?
Oxid de cupru(I)
Oxid de cupru(II)
Oxid cupric
Oxid de calciu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care dintre următoarele este un oxid acid?
MgO
CuO
SO₂
Fe₂O₃
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce tip de oxid este ZnO (oxid de zinc)?
Acid
Neutru
Amfoteric
Basic
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce oxid este folosit în cremele de protecție solară?
ZnO
Fe₂O₃
SO₃
CO₂
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce observi când fierul ruginește?
Se formează un gaz incolor
Se formează un strat roșu (oxid de fier)
Se produce o miros pungent
Se dizolvă complet în apă
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este formula dioxidului de carbon?
CO
C₂O
CO₂
O₂C
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