88. If you omit in the dilute sulfuric acid from pure i

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88. If you omit in the dilute sulfuric acid from pure iron plate, the release of hydrogen in it has been slow, and eventually almost stops. However, if zinc cane to touch the iron plate, then at last begins the rapid evolution of hydrogen. Why is that? Which metal with soluble? Make electronic equation of anodic and cathodic processes.

Additional information

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)

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