Chemistry, 15.04.2020 20:13, bludragonfly33
To afford cathodic protection to an iron object, a metal must be to reduce (have a more reduction potential) than F e 2 + .
The E r e d â for C d 2 + is , while the E r e d â for F e 2 + is . Therefore, the coating of cadmium protect iron by cathodic protection.
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