
Reações ácido-base
Authored by Susana Dias
Science, Education, Chemistry
8th Grade
Used 9+ times

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8 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Assinala as substâncias que se formam quando se adiciona um ácido a uma base, sendo esta um hidróxido.
Ácido
Base
Água
Sal
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Completa a frase: Na figura a solução que tem o caráter mais básico é _________
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O aparelho medidor de pH é ...
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Completa: Para neutralizarem a acidez provocada pela decomposição dos alimentos, as pastas de dentes têm caráter ________
5.
MULTIPLE CHOICE QUESTION
45 sec • Ungraded
Alguma vez foste picado por uma vespa?
Sim, mais do que uma vez.
Sim.
Não.
Não sei.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Se a picada de uma vespa é básica para a neutralizarmos devemos usar...
uma solução ligeiramente básica.
uma solução ligeiramente ácida.
não usamos nada
e suportamos a dor.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As hortências são flores que adquirem a cor azul quando o solo é ácido e a cor rosa quando o solo é básico. Assinala o pH para dar flores rosa.
pH=2
pH=5
pH=7
pH=8
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