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Reacciones Químicas - Método REDOX

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Reacciones Químicas - Método REDOX

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Aprende y resuelve.

Created by

Diego Pastuña
Diego Pastuña
Ecuador

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Reacciones Químicas - Método REDOX
 

Reacciones Químicas - Método REDOXOnline version

Aprende y resuelve.

by Diego Pastuña
1

Reacciones Químicas - Método Redox

La reacción química por el Método Redox, (reducción-oxidación) es un proceso donde hay una transferencia de electrones entre sustancias, provocando cambios en sus números de oxidación. Es fundamental en procesos energéticos como combustión, respiración celular, corrosión y electroquímica. 

2

Ejemplo visual

1.Determinar los estados de oxidación

Primero, identificamos la carga de cada átomo antes y después de la reacción.

  • Regla: Los elementos solos o puros siempre valen 0 en valencia.
  • Regla: El Hidrógeno suele valer +1 en valencia.

Mg^0 + 2H+1Cl-1 produce Mg^+2.00Cl2^-1+ H2^0

2.Identifica quien gana y quien pierde electrones.

  • Comparamos los números de la izquierda con los de la derecha:

Magnesio (Mg): Pasa de 0 a +2. Como el número subió, perdió

electrones.

  • Conclusión: Se oxida y es el Agente Reductor.

Hidrógeno (H): Pasa de +1 a 0. Como el número bajó, ganó electrones.

  • Conclusión: Se reduce y es el Agente Oxidante.

3. Las Semirreacciones y El Balanceo.

Para que la ecuación sea perfecta, los electrones que salen deben ser los mismos que entran:

  • Oxidación: Mg^0 produce Mg+2 + 2e^-1
  • Reducción: 2H^+1 + 2e^1 produce H2^0

El magnesio transfiere 2 electrones de hidrógeno para que la reacción ocurra.



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