
7 Oxizi
Authored by Emilia-Dana Schiha
Chemistry
7th - 8th Grade
15 Questions
Used 22+ times

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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Folosind cuvântul corect, completează propoziția : Oxizii sunt compuși .... ai oxigenului cu alte elemente
binari
ternari
2.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Oxizii sunt
metalici
nemetalici
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Elementul comun al oxizilor este
hidrogenul
oxigenul
gruparea hidroxil OH
azotul
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pentaoxidul de difosfor are formula chimică
P5O2
P2O5
PO5
PO
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
În formula generală a oxizilor E2On , n reprezintă
numărul atomic al elementului E
poziția elementului E
valența elementului E
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Oxizii metalelor, la temperatură obișnuită sunt substanțe
lichide
solide
gazoase
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Oxidul de aluminiu Al2O3 poate avea, în funcție de impuritățile existente în cristal culorile
galben
roșu
verde
violet
albastru
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