
Química - 8ºAno
Chemistry
8th Grade
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31 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Considera a seguinte representação química: 3 H2O. No total inclui...
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Cada molécula de dióxido de carbono é constituída por um átomo de carbono e dois de oxigénio. A figura acima mostra...
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Observa as quatro representações moleculares acima. A que representa a molécula de amoníaco constituída por um átomo de azoto e três de hidrogénio é a...
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química do Dióxido de carbono?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula química do Ácido Clorídrico?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O gás Oxigénio é uma substância elementar ou composta?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O Ozono é uma substância elementar ou composta?
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