Can someone answer the 9th question ASAP!!!!!!!!!
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x metal is copper and this happens because of corrosion and chemical formula is Cu(OH)2
this can be protect by oiling greasing alloying and all the best for your tomorrow exam...
Answered by
1
It can be copper
the green layer is a fungi
we can prevent rusting by coating it with zinc
we can grease it to prevent from getting Rust
we can also paint it to prevent it from that rusting
hope you get it
if you have any doubt then ask me in the comment section
thank you for asking the question
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