
ÁCIDOS E BASES
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Hard
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das opções representa corretamente uma característica dos ácidos?
Têm sabor adstringente
Conduzem eletricidade quando dissolvidos em água
São sempre sólidos
Têm sabor salgado
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que os ácidos liberam em solução aquosa segundo Arrhenius?
Íons OH−
Íons H+
Elétrons livres
Moléculas de água
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que os hidróxidos (bases) liberam em solução aquosa segundo Arrhenius?
Íons H+
Íons OH−
Prótons livres
Átomos neutros
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual ácido é encontrado no suco gástrico humano?
Ácido sulfúrico
Ácido fosfórico
Ácido clorídrico
Ácido acético
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes bases é usada na fabricação de sabão?
NaOH (hidróxido de sódio)
H2SO4 (ácido sulfúrico)
HNO3 (ácido nítrico)
HCl (ácido clorídrico)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O ácido acético (CH₃COOH) é o principal componente de qual produto doméstico?
Água sanitária
Vinagre
Detergente
Sabão em pó
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que significa uma solução ácida ter pH menor que 7?
É neutra
É básica
É ácida
Não conduz eletricidade
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