
Química Geral II
Authored by KARINA BARROS
Chemistry
2nd Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Complete a frase: Através da densidade é possível verificar o _______ de uma substância.
Peso
Gravidade
Universo
Volume
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual é o valor da massa molecular do NaOH. Dados: Na=23, O=16 e H=1
36
18
32
40
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Se uma solução tem a quantidade de soluto dissolvida menor que o valor do coeficiente de solubilidade , esta solução é classificada como:
Saturada
Supersaturada
Insaturada
Precipitada
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual é a unidade utilizada para medir a concentração molar ou molaridade ?
mols
g/L
molal
M ou mol/L
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Uma reação exotérmica ocorre com:
perda de calor
ganho de calor
ganho de volume
perda de massa
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Uma reação endotérmica ocorre com:
ganho de calor
perda de calor
perda de massa
ganho de volume
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Uma reação que tenha o valor de variação de entalpia negativo é classificada como:
endotérmica
exotérmica
transferida
calorífica
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