

questão aula abril
Flashcard
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Ana Costa
Used 1+ times
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10 questions
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1.
FLASHCARD QUESTION
Front
A velocidade de uma reação química depende...
Back
da natureza dos reagentes e das condições em que esta é realizada.
2.
FLASHCARD QUESTION
Front
Quais fatores influenciam a velocidade de uma reação química?
Back
Todas as opções estão corretas: Temperatura, Superfície de contacto/estado de divisão do reagente sólido, Concentração dos reagentes, Luz.
3.
FLASHCARD QUESTION
Front
Em geral, a velocidade de uma reação química aumenta quando...
Back
a concentração de um dos reagentes aumenta
4.
FLASHCARD QUESTION
Front
A velocidade de reação aumenta quando a temperatura a que decorre uma reação...
Back
aumenta
5.
FLASHCARD QUESTION
Front
Os catalisadores são substâncias que, quando em contacto com os reagentes...
Back
aumentam a velocidade da reação.
6.
FLASHCARD QUESTION
Front
A reação é lenta ou muito lenta se...
Back
os produtos formam-se com pouca rapidez.
7.
FLASHCARD QUESTION
Front
A escala de pH varia entre:
Back
0 e 14
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