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← ScienceWhich outcome occurs when sustained high humidity impacts road surfaces treated with magnesium chloride?
A)Enhanced ionic mobility accelerates metal corrosion✓
B)Decreased surface tension improves vehicle traction
C)Reduced chloride diffusion minimizes concrete damage
D)Increased oxidation resistance protects rebar integrity
💡 Explanation
Enhanced ionic mobility accelerates metal corrosion because water absorption increases the mobility of chloride ions, facilitating electrochemical reactions. This reaction with iron is a consequence of ion transport, therefore it accelerates corrosion, rather than preventing further deterioration or improving other properties.
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