Question
Asked Jan 7, 2020
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 Explain the role of each of the following in promoting corrosion: moisture, electrolytes, and acids. 

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Expert Answer

Step 1

Rust is a hydrated form of metal whose exact composition depends on the conditions under which it forms.

Step 2

Moisture:

Moisture must be present for rusting to occur.The presence of water necessary because water is a reactant in the last reaction, and also because charge must be free to flow between the anodic and cathodic regions.

Step 3

Electrolytes:

Additional electrolytes promote more rusting. The presence of an electrolyte on the surface o iron promotes rusting because it enhances current flow. This...

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