
Ácidos e suas Propriedades
Chemistry
11th Grade
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a definição de ácido segundo Arrhenius?
Substância que não se dissolve em água
Substância que libera H+ em água
Substância que libera elétrons em água
Substância que libera OH- em água
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes substâncias é um hidrácido?
H3PO4
H2SO4
HNO3
HCl
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes substâncias é um oxiácido?
HBr
H2S
HCl
HNO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes substâncias é um diácido?
H3PO4
H2SO4
H3PO2
HCl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes substâncias é um triácido?
HNO3
H3BO3
H2S
HCl
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o grau de ionização (α) de um ácido forte?
5% < α < 50%
α = 0%
α > 50%
α < 5%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o grau de ionização (α) do HF, sabendo que de 100 moléculas 92 não se ionizam?
92%
50%
100%
8%
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