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← ScienceWhich outcome occurs when an unprotected aluminum structure is exposed to saltwater?
A)Passivation layer prevents further reaction
B)Galvanic corrosion accelerates metal loss✓
C)Elasticity increases due to chloride diffusion
D)Tensile strength improves from work hardening
💡 Explanation
When aluminum contacts saltwater, galvanic corrosion occurs because aluminum is anodic to other metals present, leading to accelerated oxidation and metal loss at the aluminum surface. Therefore accelerated corrosion results, rather than passivation, increased elasticity, or improved strength which require different conditions.
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