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For questions relating to water (H₂O), specifically its structure, properties, and uses in chemistry. For questions not about water but rather about solutions in water, use tags [aqueous-solution] or [solubility] instead.

9 votes
5 answers
25k views

Why is a tin can that appears like galvanised steel rusting?

I then washed the can and added water to it, and heated the bottom of the can with a butane torch. After the water was heated up, I removed the torch and left it out for a while. … When I came back later, I emptied the water but noticed that the bottom rim of can had quite a bit of rusting. …
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