Picture of How to separate water
Here's a quick cheap way to get some hydrogen and oxygen.

Step 1: Gather the items

Picture of 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.
cal2871 year ago
Does the same work without adding salt?
dboss21 year ago
There will also be a certain amount of chlorine gas from the salt.
What happens after I see bubbles? Thanks

then you add some dish soap to the water, and watch flammable bubbles form.

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.

ps: oxygen will appear at the positive lead, negative leads to Hydrogen.

francisdsa1 year ago