Explain how galvanizing protects a metal from corrosion.

Explanation:

Galvanization is the process of applying a protective zinc coating to steel or iron in order to prevent premature rust and corrosion. The corrosion of zinc is very slow, which gives it an extended life while it protects the base metal. Due to the alloying of the Zinc to the iron, cathodic protection occurs.

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c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.