
Ácidos e Bases
Science, Chemistry
9th - 10th Grade
Used 3+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A escala de pH mede a acidez ou basicidade de uma substância. Quando o valor apontado é menor que 7, esta indica que a substância é:
Ácida
Básica
Neutra
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Tipo de sustancia que quando dissolvida em água libera ions H+
sais
água
bases
ácidos
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Quais dos itens a seguir são bases?
Água sanitária
Limão
Banana
Vinagre
Água oxigenada
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A substância que libera OH- quando ionizada é chamada de
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
o que são bases ?
são compostos que possuem um cátion H +
são compostos que possuem um ânion OH _
são compostos que possuem um sal
são compostos que possuem um óxido
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma substância que é 3 na escala de pH seria um(a):
ácido
base
sal
suco de manga
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos seguintes é um exemplo de base?
suco de laranja
vinagre
limão
limpador de ralo/sabonetes
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