
Acido- Base
Authored by Tânia Ramos
Chemistry
8th Grade
Used 7+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Indica a cor do tornesol quando em contacto com uma solução aquosa de aspirina.
azul-arroxeado
rosa-carmim
incolor
vermelho
2.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Indica a solução mais ácida
C
D
E
A
B
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A solução A pode ser uma solução de
Ajax limpa vidros
pasta dentífrica
água pura
leite
4.
MULTIPLE SELECT QUESTION
45 sec • 6 pts
Seleciona as soluções básicas
NaOH
HNO3
H2SO4
NH3
Hidróxido de sódio
5.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Para baixar a basicidade dos solos podes usar uma solução aquosa de....
NH3
H3PO4
KOH
Ca(OH)2
6.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Uma solução aquosa de NaCl apresenta um valor de pH de ....
12
6,8
3
7
7.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Adicionou-se, progressivamente, uma solução aquosa de pH =2, a uma solução aquosa de pH= 11.
Verificou-se que...
a mistura trona-se mais alcalina.
a basicidade da mistura aumenta
o pH da mistura diminui
o pH da mistura aumenta
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