Chemistry Shipwreck Questions. (2 Viewers)

[robbo845]

I have been having a little trouble with these questions. Any help would be appreciated or even links to appropraite websites.
1. The propeller of a small boat is made of bronzed with iron on the surface. The drive shaft, which is connected to the propeller is made of nickel-copper alloy. The iron adds strength to the bronze propeller.
a) The iron is observed to corrode over time, leaving pits in the propeller. Explain this observation.
b)Explain how this arrangement of metals protects the nickel-copper alloy drive shaft.

Thanks for any help in advance

 

[muzeikchun852]

i dont think much people had started their option yet. so you might have to wait for a while.

 

[s2 SEductive]

Woahhh you've already started your option!

 

[Aerath]

Woahhh you've already started your option!

Some schools do their various modules in different orders.

 

[s2 SEductive]

Some schools do their various modules in different orders.

yeah true