
SOLUBILITATE. pH- PARTEA IV
Authored by IRINA MARIN
Science
9th Grade
20 Questions
Used 3+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidul conjugat al bazei HO- este:
HCO3 -
HCl
H2CO3
H2O
NH4 +
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidul conjugat al bazei NH3 este:
HCO3 -
HCl
H2CO3
H2O
NH4 +
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidul conjugat al bazei CN- este:
HCO3 -
HCN
H2CO3
H2O
NH4 +
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidul conjugat al bazei Cl- este:
HCO3 -
HCl
H2CO3
H2O
NH4 +
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidul conjugat al bazei CO3 2- este:
HCO3 -
HCl
H2CO3
H2O
NH4 +
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nu reprezintă o pereche acid-bază conjugată:
HCN/CN-
HCl/Cl-
H2CO3/CO3 2-
NH4 + / NH3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se consideră schema de transformări:
H2 + A→ B
H2O + A→ B + HClO
Despre compușii notați cu litere în schema de transformări este adevărat că:
A are caracter nemetalic mai pronunțat decât fluorul
moleculele compusului A sunt polare
B ionizează parțial în soluție apoasă
B este un acid tare
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