Steps:
1.) Pour about two inches of vinegar into your test tube,
clear plastic cup or clear glass (be extra careful if using a glass
container).
2.) If you are using a
test tube, position it in the test tube rack once you have poured
in the vinegar.
3.) Take the nail and sand down the tip end
of the nail with the sandpaper (make sure that you have a long
nail to stand in the vinegar).
4.) Place the nail to rest
in the vinegar.
Watch and in a few minutes you should see bubbles appear in the
test tube around the iron nail. These bubbles are hydrogen bubbles.
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