Química Geral
Quiz
•
Chemistry
•
2nd Grade
•
Practice Problem
•
Hard
CLARICE SIERRA
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uma reação exotérmica é aquela que:
Absorve calor
Libera calor
Só acontece na presença de oxigênio
Ocorre equilíbrio químico
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sempre que o combustível for orgânico, numa combustão completa, ocorre formação de
Álcool e água
Calor e cinza
Gás carbônico e água
Nitrogênio e Hidrogênio
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A entalpia padrão é aquela que tem valor
Negativo
Positivo
Proporcional à quantidade de calor
Igual a 0
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A entalpia de uma reação endotérmica é
Positiva
Negativa
Neutra
Maior nos reagentes
5.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
A Regra do Octeto prevê que, para se tornarem estáveis, os átomos precisam ter quantos elétrons na última camada?
Seis
Dez
Oito
Zero
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
No modelo atômico de Dalton, a estrutura do átomo era comparada à
Uma bola de bilhar
Um sistema solar
Um pudim de passas
Uma bola de vôlei
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Numa ligação iônica, os átomos
Compartilham elétrons
Doam elétrons
Trocam elétrons
Se equilibram entre si
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