
Formule chimice cerc metodic
Authored by Zoia Cazacu
Chemistry
7th Grade
Used 1+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Formula Ca(OH)2 este formula de:
Oxid
Baza
Sare
Acid
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trioxidul de sulf are formula:
S2 O3
S3O
SO3
S3O3
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Formula carbonatului de calciu este:
Ca2(CO3)2
Ca CO3
CaHCO3
Ca (HCO3)2
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Formula acidului sulfuric este:
H2S
H2SO3
H2SO2
H2SO4
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
H3PO4 se numește
Oxid de fosfor
Hidroxid de fosfor
Acid fosforic
Acid fosforos
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dacă o soluție are pH-ul de 3,7 aceasta are caracter:
neutru
Bazic
Acid
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