
11Q2.2 #2 - Série eletroquímica e pares Oxidação-Redução
Quiz
•
Chemistry
•
11th Grade
•
Hard
Marco Pereira
Used 86+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Na reação abaixo, quem é o oxidante e quem é o redutor?
Fe2+ + Cr2O72- → Fe3+ + Cr3+
Oxidante: Fe2+
Oxidante: Cr2O72-
Redutor: Fe2+
Redutor: Cr2O72-
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Marque abaixo a(s) característica(s) de um oxidante:
Sofre redução
Ioniza-se
Doa eletrões para outro átomo
Retira eletrões de outro átomo
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Marque a(s) característica(s) de um redutor
Sofre oxidação
Sofre redução
Retira eletrões de outro átomo
Doa eletrões a outro átomo
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Qual ou quais das opções abaixo representa um par redox (reagente e produto da oxidação ou redução)
MnO4-/Mn2+
H2O/NO3
H2O2/H2O
HCl/NaCl
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Da reação entre zinco e sulfato de cobre (II), os pares conjugados de oxidação-redução são:
Zn (s) + Cu2+ (aq) --> Zn2+ (aq) + Cu (s)
Zn2+/ Zn e Cu2+/Cu
Cu2+/Cu e Zn/ Zn2+
Zn2+/ Zn e Cu/Cu2+
Zn/ Zn2+ e Cu2+/Cu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acordo com a série eletroquímica diga qual é o metal com maior poder redutor:
Zn
Mg
Fe
Cu
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acordo com a série eletroquímica diga qual é o ião metálico com maior poder oxidante:
Mg2+
Zn2+
Ag+
Cu2+
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