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Desafío Redox

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Desafío Redox

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Quiz sobre reacciones REDOX

Created by

JIMENA SANCHEZ FLORES
JIMENA SANCHEZ FLORES
Mexico

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Desafío Redox
 

Desafío RedoxOnline version

Quiz sobre reacciones REDOX

by JIMENA SANCHEZ FLORES
1

¿Qué indica una oxidación en una reacción REDOX?

2

En una ecuación REDOX, ¿qué representa el agente oxidante?

3

¿Qué se entiende por número de oxidación?

4

¿Qué cifra se usa para balancear reacciones REDOX en medios ácidos?

5

¿Qué es una semirreacción de oxidación?

6

¿Qué sucede en una pila galvánica cuando se produce REDOX espontáneamente?

7

¿Qué determina el potencial estándar de reducción (Eº)?

8

¿Qué elemento se reduce en la reacción global: Al + Cu2+ → Al3+ + Cu?

9

¿Qué papel cumple el medio en una REDOX balanceada?

10

¿Qué define una reducción en términos de estados de oxidación?

Explicación

La oxidación implica pérdida de electrones y aumento del estado de oxidación.

El agente oxidante se reduce al aceptar electrones.

El número de oxidación asigna carga formal a cada átomo.

En medio ácido, se utiliza H+ y H2O para balancear.

Las semirreacciones de oxidación muestran la pérdida de electrones.

Las pilas convierten energía química en eléctrica mediante REDOX espontáneo.

Eº indica qué tan fuertemente un oxidante se reduce.

Cu2+ se reduce a Cu; Al se oxida a Al3+.

El medio facilita el balance de electrones y átomos durante la reacción.

La reducción implica ganancia de electrones y disminución del estado de oxidación.

 
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