
Indicele de hidrogen
Authored by Stela Burcovschi
Chemistry
12th Grade
Used 5+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Culoarea fenolftaleinei în mediul bazic este...
zmeuriu
incolor
roz
roșu
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Culoarea turnesolului în mediul acid este...
albastru
roșu
roz
violet
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Concentrația ionilor în soluția de cu concentrația 0,001 mol/l.
mol/l
mol/l
mol/l
mol/l
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Valoarea pH-lui în soluția de HNO3 cu concentrația 0,001 mol/l.
1
2
3
4
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Concentrația ionilor în soluția acidului azotic cu concentrația mol/l.
mol/l
mol/l
3
11
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Valoarea pOH-lui în soluția de NaOH cu concentrația de 0,01 mol/l.
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Valoarea pH-lui în soluția de NaOH cu concentrația 0,01 mol/l.
2
12
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