Os corpúsculos e sua representação simbólica
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Easy
Ana Peixoto
Used 1+ times
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22 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 5 pts
O símbolo químico do elemento Enxofre é ...
2.
FILL IN THE BLANK QUESTION
1 min • 5 pts
O símbolo químico do elemento potássio é ...
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A representação simbólica de 10 átomos de nitrogénio é ...
N10
10N
10C
10H
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
20 Mg representa:
20 moléculas de magnésio
20 átomos de magnésio
20 protões de magnésio
20 de magnésio
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
O ar atmosférico é uma mistura de vários gases, um dos quais o dioxigénio. Em pequenas quantidades encontram-se outros gases, como o dióxido de carbono, o metano e o vapor de água, cujos modelos se encontram, em seguida, representados.
Na figura estão representadados (as):
4 átomos diferentes
4 moléculas iguais
4 moléculas diferentes
2 moléculas
6.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Sobre a molécula de água, seleciona a opção correta.
É elementar.
É composta.
Tem 4 átomos.
É constituída por 2 átomos de oxigénio e um de hidrogénio.
7.
FILL IN THE BLANK QUESTION
1 min • 5 pts
A molécula de Dioxigénio é constituída por ______ átomos de oxigénio.
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