UN 1 - Avaliação Objetiva - fundamentos química e bioquímica

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Minhas Disciplinas / Meus cursos / 414587
/ Unidade 1 - Fundamentos da Química: Conhecendo o Mundo Material / UN 1 - Avaliação Objetiva
Iniciado em Saturday, 29 Jun 2024, 11:36
Estado Finalizada
Concluída em Saturday, 29 Jun 2024, 12:10
Tempo
empregado
34 minutos 23 segundos
Avaliar 1,70 de um máximo de 1,70(100%)
Questão 1
Correto
Atingiu 0,34 de 0,34
Zinco é um metal que reage rapidamente na presença de ácido clorídrico diluído, oxidando e gerando cloreto de
zinco (ZnCl ) conforme a reação abaixo:
Zn(s) + 2 HCl(aq)→ ZnCl (aq) + H (g)
Pouco tempo após adicionar a barra, ela “desaparece” devido à formação de cloreto de zinco, e o sistema �ca
efervescente durante esse processo graças à formação de gás hidrogênio.
Sabendo que a proporção em massa (gramas) das respectivas substâncias apresentadas na equação é 65,3: 73:
136,3:2, qual seria a proporção de�nida se houvesse 32,65 g de Zn?
Escolha uma opção:
a. 32,65:15,3: 32,2: 3.
b. 32,65:6,8:34,1: 1,0.
c. 32:65: 33,5: 64,3: 0,5.
d. 32,65:36,5:68,15: 1,0. 
e. 32,65:12,5: 21,1:2.
2
2 2
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https://www.shutterstock.com/pt/image-vector/atomic-orbitals-basic-vector-illustration-types-176273831?
src=KlZ5SoEMkTYHhclJfDkVgQ-1-16
Fonte: SHUTTERSTOCK, 2018.
 Figura 2 – Modelo atômico quântico
https://www.shutterstock.com/pt/image-illustration/hydrogen-atom-bohr-model-proton-electron-1036576219?
src=mNR5NjUIcegYQD-l3_53Kw-1-8
Fonte: SHUTTERSTOCK, 2018.
Assinale a alternativa que apresenta a diferença entre os modelos apresentados nas Figuras 1 e 2. 
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Questão 3
Correto
Atingiu 0,34 de 0,34
dualidade do elétron, ou seja, caráter de onda e partícula.
c. O modelo atômico quântico comprova a existencia do núcleo pela presença de partículas alfa;  já o
modelo de Bohr mostra que o átomo é uma esfera positiva com elétrons incrustados.
d. O modelo de Bohr propõe níveis ou camadas de elétrons, e o modelo quântico de�ne orbitais, que são
lugares onde há uma grande probabilidade de encontrar o elétron.

e. O modelo quântico revela a presença de núcleo e camadas de elétrons; já o modelo de Borh propõe a
indivisibilidade do átomo.
Fotossíntese é um processo no qual as células de organismos autotró�cos produzem água e glicose. Durante a
fotossíntese, são gastas 12 moléculas de água e seis moléculas de gás carbônico para a formação de seis
moléculas de oxigênio, seis moléculas de água e uma molécula de glicose.
Um estudante analisou o processo e fez as seguintes observações:
I- O processo envolve uma tranformação física.
II- A reação química da fotossíntese é:  12 H O + 6CO → 6 O + 6 H O + C H O .
III- Reagindo 24 moléculas de água com 12 moléculas de gás carbônico, seriam formadas três moléculas de
glicose.
Ao analisaras observações do estudante, e(são) verdadeira(s) apenas:
Escolha uma opção:
a. I e II.
b. I.
c. II e III.
d. III.
e. II. 
2 2 2 2 6 12 6
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29/06/24, 12:25 UN 1 - Avaliação Objetiva: Revisão da tentativa
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No nosso cotidiano, deparamo nos com vários processos químicos e físicos. As imagens abaixo ilustram tais
fenômenos:
a) 
Fonte: https://www.shutterstock.com/pt/image-photo/car-rust-corrosion-damage-road-salt-438498895?
src=3y10x0KwVrps6qbvpQHxHA-1-92
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Fonte: https://www.shutterstock.com/pt/image-photo/smoke-stacks-combustion-gas-torch-large-559128589?
src=yWV6TqycPnILBdIEeFATAA-1-73
c) 
Fonte: https://www.shutterstock.com/pt/image-photo/melting-icecream-589512272?
src=JO0I0zsQckOgZaBCfoXLIQ-1-4
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https://www.shutterstock.com/pt/image-photo/melting-icecream-589512272?src=JO0I0zsQckOgZaBCfoXLIQ-1-4
https://www.shutterstock.com/pt/image-photo/melting-icecream-589512272?src=JO0I0zsQckOgZaBCfoXLIQ-1-4
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Fonte: https://www.shutterstock.com/pt/image-photo/boiling-water-on-gas-�ame-12093343?src=whN3qSmE-
6NYtt6XfLXYAg-1-5
Pela análise das imagens, é possivel concluir que os fenômenos físicos se encontram nas imagens:
Escolha uma opção:
a. b, c.
b. c ,d. 
c. a,d.
d. a, b, c, d.
e. a, b.
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estado físico sólido até o estado físico gasoso, à pressão atmosférica.
Sistema A
Fonte: Elaboradopelo autor.
Sistema B
Fonte: Elaborado pelo autor.
A partir das análises das substâncias nos grá�cos A e B, assinale a opção correta.
Escolha uma opção:
a. O sistema A apresenta temperatura constante nos intervalos de liquefação e solidi�cação;  por isso, há
nesse sistema uma substância pura.
b. O sistema A apresenta uma substância pura, pois apresenta pontos de fusão e ebulição constantes. 
c. O sistema A apresenta ponto de fusão variável; por isso, há nesse sistema uma mistura.
d. O sistema B apresenta uma substância pura com pontos de fusão e ebulição variáveis.
e. O sistema B apresenta temperatura de fusão constante; por isso, há nesse sistema uma substância pura.
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29/06/24, 12:25 UN 1 - Avaliação Objetiva: Revisão da tentativa
https://avap.multivix.edu.br/mod/quiz/review.php?attempt=5851074&cmid=1630983 8/9
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29/06/24, 12:25 UN 1 - Avaliação Objetiva: Revisão da tentativa
https://avap.multivix.edu.br/mod/quiz/review.php?attempt=5851074&cmid=1630983 9/9
https://avap.multivix.edu.br/mod/scorm/view.php?id=1630982&forceview=1
https://avap.multivix.edu.br/mod/scorm/view.php?id=1630984&forceview=1
https://avap.multivix.edu.br/my/
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https://avap.multivix.edu.br/user/index.php?id=26148
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https://avap.multivix.edu.br/course/view.php?id=26148&section=10
https://avap.multivix.edu.br/course/view.php?id=26148&section=11
https://avap.multivix.edu.br/course/view.php?id=26148&section=12
https://avap.multivix.edu.br/course/view.php?id=26148&section=13
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