
Leis Ponderais 2
Authored by Fernanda Ribeiro de Oliveira
Science, Chemistry
2nd Grade
Used 5+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
27
59
53
62
2.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
46,0 g de sódio reagem com 32,0 g de oxigênio formando peróxido de sódio. Qual a quantidade de peróxido de sódio será obtida?
78 g
39 g
156 g
3.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
100 g de calcário é colocada sob aquecimento e se decompõe em 56 g de cal viva e 44 g de gás carbônico. Essa afirmativa está baseada na lei de qual cientista?
Lavoisier
Dalton
4.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
A propriedade conservada, no final dessa reação é:
o número de átomos.
a concentração das substâncias.
o número de ligações químicas.
5.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
A aplicabilidade dos metais está relacionada com sua facilidade em conduzir calor e eletricidade. As características desses elementos estão relacionadas com as interações do tipo:
ligação metálica.
ligação iônica.
6.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
Quantas vezes a massa da molécula de glicose (C6H12O6) é maior que a da molécula de água (H2O)? (Dados: massas atômicas: H = 1; O = 16, C = 12).
4
6
8
10
7.
MULTIPLE CHOICE QUESTION
5 mins • 5 pts
27
45
53
59
62
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