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← ScienceWhich risk increases when de-icing roadways with magnesium chloride?
A)Accelerated corrosion of steel reinforcement✓
B)Increased pavement cracking due to expansion
C)Reduced tire grip during heavy rain
D)Formation of insoluble calcium precipitates
💡 Explanation
Accelerated corrosion results because the magnesium chloride dissociates into ions, enhancing the electrolytic process via ionic conduction. This process allows the Redox reaction between steel and oxygen to proceed more effectively, therefore accelerating corrosion, rather than pavement expansion which relies on thermal effects.
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