Formulele oxizilor

Formulele oxizilor

7th - 8th Grade

10 Qs

quiz-placeholder

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Formulele oxizilor

Formulele oxizilor

Assessment

Quiz

Chemistry

7th - 8th Grade

Practice Problem

Medium

Created by

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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