Formule chimice cerc metodic

Formule chimice cerc metodic

7th Grade

6 Qs

quiz-placeholder

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Formule chimice cerc metodic

Formule chimice cerc metodic

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

Created by

Zoia Cazacu

Used 1+ times

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6 questions

Show all answers

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