CUESTIONARIO 2 SEMESTRAL TEMAS SELECTOS DE QUÍMICA II
Quiz
•
Chemistry
•
3rd Grade
•
Medium
FABIOLA MAY
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50 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Son reacciones en las que hay movimiento de electrones desde una sustancia que cede electrones (reductor) a una sustancia que capta electrones (oxidante).
Reacciones Redox
Reacciones espontáneas
Reacciones exotérmicas
Reacciones térmicas
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Rama de la fisicoquímica que estudia la transformación de la energía de las reacciones químicas en energía eléctrica y la aplicación de electricidad para provocar reacciones químicas.
físico química
geoquímica
electroquímica
bioquímica
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cuando un elemento se oxida _______________ electrones, mientras que la sustancia que se reduce los _______________.
aumenta – disminuye
pierde – gana
disminuye – pierde
gana – pierde
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
La sustancia que cede electrones, se _________. La sustancia que gana electrones, se _________.
Reduce - Oxida
Absorbe - Libera
Libera - Absorbe
Oxida - Reduce
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
A los átomos o grupos de átomos que han perdido o ganado electrones se les conoce como:
iones
cátodos
isómeros
isótopos
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Cuando un elemento se reduce gana electrones ¿qué sucede con su estado de oxidación?
aumenta
se mantiene
disminuye
pasa a cero
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
En una celda electroquímica los electrodos en los que ocurre la oxidación se les llama ____________ y en los que ocurre la reducción se llaman ___________.
cátodo – ánodo
catión – anión
anión – catión
ánodo – cátodo
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