
ácidos e bases
Science
9th Grade
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em meio aquoso, os ácidos se ionizam e liberam
cátions
íons H+
Ânions
íons OH-
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O hidróxido de sódio ou soda cáustica (NaOH) é
um ácido
um sal
uma base
neutro
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma substância de pH = 3 é
ácida
básica
neutra
alcalina
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marque a alternativa que tenha um hidrácido
H2SO4
HNO3
H3PO4
HCN
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dentre as substâncias abaixo marque a base
leite de magnésia
limão
suco de laranja
vinagre
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marque o sal
HCl
KBr
NaOH
HNO3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A reação entre um ácido e uma base resulta em
um ácido mais forte
uma base mais forte
uma neutralização
íons H+
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