Here's a quick cheap way to get some hydrogen and oxygen.

Step 1: Gather the items

You will need 2 pencils,a cup,some cardboard,salt,a 9-volt battery,a 9-volt battery connected, and a pencil sharpener.
<p>Please use only your own images.</p>
Does the same work without adding salt?
There will also be a certain amount of chlorine gas from the salt.
What happens after I see bubbles? Thanks
<p>then you add some dish soap to the water, and watch flammable bubbles form.</p>
<p>The Bubbles are Hydrogen and Oxygen. If you can collect them from each pen seperatly by using pvc-tubes, you can use them for other experiments. e.g. hydrogen has a lower density then air, a balloon would float if it was filled with H.</p>
<p>ps: oxygen will appear at the positive lead, negative leads to Hydrogen.</p>

About This Instructable


33 favorites


More by NathanEck: Pb & J Tortilla How to separate water Extracting DNA from fruit
Add instructable to: