
Química- CONCEITOS FUNDAMENTAIS.
Authored by Irany Rocha
Chemistry
12th Grade
Used 15+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
1-Qual das alternativas a seguir contém apenas substâncias compostas?
a) N2, CO.
b) CO, H2O.
c) NH3, Na.
d) O3, Mg.
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2-Qual das alternativas a seguir contém apenas substâncias simples?
a) N2, CO.
b) CO, H2O.
c) NH3, Na.
d) O3, Mg.
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3- Substâncias simples diferentes formadas por átomos do mesmo elemento químico:
a) Átropos.
b) Alótropos.
c) Artrópodes.
d) Agropolos.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A soma de seus coeficientes é:
a) 8
b) 7
c) 6
d) 5
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
As reações são:
a) Ambas irreversível.
b) Ambas reversível.
c) Uma irreversível e a outra reversível.
d) Nenhuma das alternativas.
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
6- Qual a quantidade de elementos químicos presentes no
permanganato de potássio (KMnO4)?
a) 2.
b) 3.
c) 4.
c) 5.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
7- Qual a quantidade de átomos presentes no
permanganato de potássio (KMnO4)?
a) 8.
b) 7.
c) 6.
c) 5.
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