9º CIC AP 3ºB Química

Quiz
•
Science, Chemistry
•
9th Grade
•
Hard
Jorge Henri
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
NaOH, Na2CO3, Na2O e H3PO4. Tais substâncias são, respectivamente:
base, óxido, sal e ácido
base, sal, óxido e ácido
ácido, base, sal e óxido
ácido, sal, óxido e base
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
pH > 7 é ácido e pH < 7 é básico.
Verdadeiro
Falso
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A função de um indicador ácido-base é:
Alterar de cor quando a composição do indicador muda.
Alterar o pH quando a cor da solução muda.
Alterar o pH quando a solução for apenas básica.
Alterar a cor da solução ao se alterar o pH.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Na escala de pH o valor 5 é?
Básico
Neutro
Ácido
Salino
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sustância que libera íons hidrogênio quando se dissolve em água
ácido
base
sal
metal
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sustância que libera íons hidróxido quando se disolve em água.
ácido
base
sal
óxido
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
De acordo com a escala de pH, em qual faixa se encontra as bases?
A
B
C
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