
Acizi și baze
Authored by INA VLAD
Chemistry
12th Grade
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17 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Acidul clorhidric este un acid deoarece:
conţine hidrogen
este donor de protoni
este un electrolit puternic
este donor de electroni
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ionul carbonat acid se comportă ca
un acid
o baza
o substanţă amfoteră
un donor de protoni.
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Soluţia în care [H3O+] = [HO-] prezintă caracter
neutru
acid
bazic
oxidant
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soluţia apoasă a cărui pH = 9, are concentraţia ionilor HO¯ egală cu
10−9 mol/L
9 mol/L
10−5 mol/L
10−3 mol/L
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
pH-ul unei soluţii de KOH de concentrație 0,01 mol/L este
2
12
13
11
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
pH-ul unei soluţii de HCl de concentrație 0,1 mol/L este
10
1
11
0
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
În reacţia de ionizare în soluţie apoasă a bazelor tari se formează ionul
hidroniu
hidroxil
amoniu
clorură
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