
oxirredução
Quiz
•
Chemistry
•
1st - 3rd Grade
•
Practice Problem
•
Hard
MAGALY COSTA
Used 7+ times
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14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual o nox do enxofre em SO3
+3
-3
-6
+6
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quando um metal sofre corrosão:
sofre redução
ganha elétrons
sofre oxidação
o nox não se altera
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quando um metal sofre corrosão:
sofre redução
ganha elétrons
sofre oxidação
o nox não se altera
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quando uma espécie química sofre oxidação:
atua como agente oxidante
é o agente redutor
o nox diminui
ganha elétrons
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Os metais alcalinos combinados com outros elementos têm sempre nox :
+1
+2
zero
variável
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dizemos que um elemento químico sofreu redução quando há perca de elétrons, fazendo com que seu NOX seja aumentado.
Verdadeiro
Falso
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A redução do NOX acontece quando o elemento doa seus elétrons a um outro elemento químico.
Verdadeiro
Falso
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