
Quiz sobre Química
Quiz
•
Chemistry
•
6th Grade
•
Medium
Iola Duarte
Used 2+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o gás que se liberta quando se junta bicarbonato de sódio e vinagre?
Monóxido de carbono
Dióxido de carbono
Oxigénio
Nitrogénio
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O pH de uma solução é um indicador da sua acidez:
Verdadeiro
Falso
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se uma solução tiver um pH de 10.0 significa que:
É básica ou alcalina
É ácida
É neutra
Não se mistura com a água
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O óleo e a água são miscíveis, formando uma solução homogénea.
Verdadeiro
Falso
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Numa cromatografia em papel, usada para separar pigmentos numa tinta, qual o nome dado ao solvente que está no copo?
Fase aquosa
Fase estacionária
Fase móvel
Fase gasosa
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um cubo de gelo (densidade 0.92 g/cm3) flutua em gasolina (densidade 0.75 g/cm3):
Verdadeiro
Falso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em meio básico, a fenolftaleína (indicador de pH) muda de incolor para:
Verde
Azul
Amarelo
Rosa
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