
ÁGUA, pH e SISTEMA TAMPÃO
Authored by BRUNO DUZZI
Chemistry
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula da água?
H2O2
H2O
H3O
HO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A molécula de água é:
Polar
Apolar
Bipolar
Hidrocarboneto
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Segundo a Teoria de Arrhenius, ácido são compostos que em solução aquosa liberam:
OH-
e-
H+
Neutrons
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Segundo a teoria de Brönsted-Lowry, ácidos são compostos capazes de:
Doarem elétrons
Receberem prótons
Receberem neutrons
Doarem prótons
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identifique a escala de pH
3-15
0-14
0-16,5
3-20
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Através do pH apresentado, qual substância abaixo é um ácido?
pH = 8,75
pH = 7,32
pH = 12,5
pH = 5,80
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Através do pH apresentado, qual composto é uma base?
pH = 8,2
pH = 5,3
pH = 4,2
pH = 6,7
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