
Bases - 1º ano EM
Authored by Maria Cecília
Chemistry
10th Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a definição de base, segundo a teoria de Arrhenius?
Substância que libera íons H⁺ em solução aquosa.
Substância que libera íons OH⁻ em solução aquosa.
Substância que doa prótons em uma reação.
Substância que aceita prótons em uma reação.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a fórmula do hidróxido de cálcio?
NaOH
KOH
Ca(OH)₂
NH₄OH
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A base KOH é conhecida como:
Hidróxido de cálcio
Hidróxido de magnésio
Hidróxido de potássio
Hidróxido de amônio
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual das opções a seguir representa corretamente a dissociação do hidróxido de sódio (NaOH) em água?
NaOH → Na⁺ + OH⁻
NaOH → Na + O + H
NaOH → H₂O + Na
NaOH → Na⁺ + H₂
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a fórmula do hidróxido de cálcio?
NaOH
KOH
Ca(OH)₂
NH₄OH
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a nomenclatura correta para a base NaOH?
Hidróxido de potássio
Hidróxido de sódio
Hidróxido de magnésio
Hidróxido de cálcio
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Qual das opções a seguir é uma base forte?
(pode ser mais de um item correto)
NaOH (hidróxido de sódio)
NH₃ (amônia)
Ca(OH)₂ (hidróxido de cálcio)
CH₃COOH (ácido acético)
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