Formulele oxizilor
Quiz
•
Chemistry
•
7th - 8th Grade
•
Practice Problem
•
Medium
Chimie 195
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Care dintre formulele urmatoare sunt corecte?
Al2O3
CO3
Na2O
Ca2O2
BaO
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Despre formula SO2 sunt adevarate afirmatiile:
se numeste oxid de sulf
sulful are valenta II in aceasta formula
se numeste dioxid de sulf
sulful are valenta VI in aceasta formula
este oxidul unui nemetal
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Formula trioxidului de fosfor este:
PO3
P3O
P2O3
3PO
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Formula oxidului de sodiu este:
S2O
So2O
Na2O
N2O
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Fe2O3 se numeste:
oxid de fer
trioxid de fer
oxid de fer (III)
oxid de fier
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
CO se numeste:
oxid de carbon
oxid de carbon divalent
oxid de carbon(II)
monoxid de carbon
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Sunt corecte formulele:
K2O
AlO3
NaO
BaO
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