Formule chimice
Authored by Aura Nedelcu
Chemistry
1st Grade
Used 502+ times
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10 questions
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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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