Indicadores e escala de pH
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Medium
Sandra Peixoto
Used 136+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indicadores ácido-base são substâncias que
não mudam de cor na presença de ácidos ou de bases.
mudam de cor na presença de ácidos ou de bases.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A fenolftaleína apresenta cor rosa-carmim na presença de soluções
Ácidas
Básicas
Neutras
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A fenolftaleína não muda de cor (fica incolor) na presença de soluções
Ácidas
Básicas
Neutras
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A tintura azul de tornesol não muda de cor (fica azul) na presença de soluções
Ácidas
Básicas
Neutras
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O indicador universal não permite medir o valor de pH das soluções.
Verdadeiro
Falso
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O indicador universal pode ser utilizado em solução ou em papel.
Verdadeiro
Falso
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A escala de pH é uma escala numérica que varia entre
1 e 14.
1 e 12
0 e 14.
0 e 12
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