2Al + 6HCl -- 2AlCl3 + 3 H2 sorry, no subscripts for email
but 2Al + 6OH- -- Al2O3 + 3 H2O

so the reaction with acid produces hydrogen gas

Steve

"George" George@least wrote in message
...

"Dave Jackson" wrote in message
hlink.net...
put some strips of aluminum foil in the bottle and add a little HCL ("The
Works" toilet bowl cleaner works real well) tighten the cap, give a
shake, and toss out back. In a few minuites there will be a real big
"BANG" when the bottle explodes from the reaction. be sure to stay
clear! --dave


You'll want to review your inorganic chemistry. It's hydroxides you're
after if you want to generate hydrogen. Lye is the preferred for its
punch by weight. Drano and some other drain cleaners even include some
aluminum chips for the foaming and the mechanical action it generates.