Quote:
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Originally Posted by uno
Galvanized steel is covered in zinc. Zinc reacts with the vinegar producing hydrogen gas.
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That's what i figured .. I recalled something like that in like 5th grade ..
... the first 2 days it produced a good amount of Hydrogen and you could smell it .. then it seemed to stop producing the gas and just got dark red really fast ... pretty cool
I just looked it up and found this fun little trick I'll do with my son
1. Clean a penny: place a penny in vinegar--becomes shiny as oxide on
surface reacts with acid and dissolves.
2. To show that copper is in the solution from #1, put 50 pennies in a cup
of vinegar and let stand all day or overnight. The next day, place iron
nail in solution. Iron metal reacts with copper ions in solution--copper
metal appears on nail.