
ACIDOS E BASES
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Hard
ELZIRA TOGNATO
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que o dermatologista recomenda para manchas na pele?
Um hidratante
Um ácido
Um protetor solar
Uma loção
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes é um ácido fraco?
HCl
HF
NaOH
H₂SO₄
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química do hidróxido de magnésio?
MgO
Mg(OH)2
MgCl2
MgSO4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece com uma substância quando ela produz mais íons OH⁻?
Ela se torna mais ácida.
Ela se torna mais básica.
Ela se torna neutra.
Ela se torna mais ácida.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais valores de pH indicam uma solução básica?
Menor que 7
Exatamente 7
Maior que 7
Entre 0 e 7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o propósito de usar a escala de pH?
Para medir a temperatura
Para identificar ácidos e bases
Para medir peso
Para determinar cor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes afirmações é verdadeira sobre uma solução com pH de 10?
É ácida
É neutra
É básica
Não é nem ácida nem básica
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