
Introdução Pilha
Authored by Edson Fortes
Chemistry
8th - 12th Grade
Used 12+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Em uma pilha o elemento que sofre oxidação:
Doa elétrons
Recebe elétrons
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Em uma pilha que recebe elétrons sofre:
Oxidação
Redução
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual o eletrodo da pilha abaixo sofre corrosão?
A
B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a representação para a pilha formada com eletrodos de zinco e prata:
Zn / Zn2+ // Ag+ / Ag
O polo positivo da pilha é o eletrodo de
Zinco
Prata
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a pilha repreentada abaixo:
Cu / Cu2+ // Fe3+ / Fe2+ / Pt
O eletrodo de cobre é classificado como polo
Positivo
Negativo
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Objetos de prata escurecem, principalmente, pela formação de uma camada de sulfeto de prata em sua superfície. Uma forma de se limpar um objeto de prata escurecido consiste em envolve-lo em folha de papel alumínio e mergulha-lo em solução aquosa de carbonato de sódio.
Indique quem sofre oxidação?
Alumínio
Prata
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
O que é, o que é? Não se come, mas é bom para se comer.
Minhoca
Guarfo
Sopa congelada
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