Formule chimice

Formule chimice

1st Grade

10 Qs

quiz-placeholder

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Formule chimice

Formule chimice

Assessment

Quiz

Chemistry

1st Grade

Practice Problem

Medium

Created by

Aura Nedelcu

Used 502+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Molecula hidrogenului este formată din

2 atomi

1 atom

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Au molecule diatomice

carbonul, oxigenul, fierul

azotul, clorul, oxigenul

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Formula chimică a oxidului de magneziu este:

CaO

MgO

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Valenţa Carbonului în dioxidul de carbon este:

IV

II

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Compusul în care sulful are valenţa IV este:

dioxidul de sulf

trioxidul de sulf

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Molecula de ozon este formată din:

2 atomi de oxigen

3 atomi de oxigen

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Denumirea uzuală a carbonatului de calciu este:

calcar

sodă de rufe

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