P-man

That's why Hydrogen is placed at the top left=hand corner of the periodic table.

I thought that they were all (or at least most of them were) covalent. Also, BeCl₂ is one of the most stable Group 2 compounds, so that's why it doesn't dissolve in water. Their pH? Look around the Internet, you should find something .

Please show us what you have tried. We can help you but we are not here to do your homework for you.

Just any old strong acid should do the trick.

if you MUST use copper wire to attatch to the nail, then dip that end in wax, it`ll provide some protection against splashes when the soln fizzes, bubble gum works just as well

I hadn't thought of that. I guess it's the best way to prevent the copper wire from getting into the reaction. But why use copper wire. Isn't there something else out there that wouldn't react in the experiment?

What i did is i smothered the copper in hot glue allowing the iron too peek out.

Man, some people really do think before thay do stuff. I would have never thought of doing that. Maybe it's because I have no common sense.

No. More like PVC style stuff.

OK thanks. But how much do you think do they cost? CDN dollars plz.

I do not like this kind of questions. Do you want us to make your home work? I'll give you some hints, but please, next time, show that you've put some effort in the questions yourself.

You're right.

I think we must've posted at the same time, because when I replied, your second message wasn't there. Therefore my message corresponds to message #4, not message #5.

That makes sense. Just look at the chemical formula to check your answer; does it make sense? In this case it does, so the answer should be correct, or at least basically so.

How much does graphite plates cost and where can I get them?

I've devised a preliminary experiment for a nickel catalyst.

First I make hydrogen through electrolysis and collect it in a test tube.

Now this test tube is special because I've rigged it like a mini fuel cell. To stop the hydrogen from coming out of the test tube, I made this little assembly that ressembles the MEA in PEM fuel cells. It's a nickel plate with a plastic sheet under it and a wire connecting the catalyst exposed to the hydrogen to the plastic exposed to the air.

Theoretically, the hydrogen should get split by the nickel into its protons and electrons. The protons go through the plastic, but since the electrons can't they take the wire to make it to the other side and react with the oxygen in the air. So I should feel moisture on the outside of the plastic, right? Or around it, at least.

I haven't done this yet but maybe I'll do it tomorrow or in the week.

Hmmmm, these are tricky... Gimme some more time.

Would you therefore need a pure iron nail?

There are other science and chemistry forums, including these:

http://www.chemicalforums.com

http://www.chemicool.com

http://www.chemistryguy.com

http://www.physicsforums.com

http://www.thescienceforum.com

http://www.scienceforums.com

Hope you enjoy these.

I dunno.

Man, I didn't know you could get that far in Chemistry and not even know your metric system... No offence or anything.

Thanks, I'll do just that.

I'm working by myself on a couple of designs, one for a full system inside a car, and the other is a test with nickel catalysts. But first I have to build the basic one.

Yeah that's how I'll do it. I'll also try the gov. Who can I contact? Which branch?

How can I get a University to fund me? I need enough money to make two fuel cells (See "Build Your Own Fuel Cell" by Phillip Hurley).

OK, you lost me.

Yeah, ok.

So the NaCl in woelen's explenation is the salt bridge?

Did you guys like my little theory?