Wednesday, May 20, 2009

The Electrolysis of Water














































We did the Electrolysis of water demonstration in class yesterday. Electrolysis of water is the process of decomposition of water by means of an electric current. Hydrogen (H) gas is released at the negative electrode and Oxygen (O) gas is released at the positive electrode.
We tested the Oxygen with the "Glowing Splint" test and observe the splint bursting into flame, thus indicating the presence of Oxygen. We tested the Hydrogen gas with the "Burning Splint" test and observed the Hydrogen exploding, thus indicating the presence of Hydrogen. Very small amounts of the gases were used for safety sake. After the demonstration, the students did a sketch and write-up of the activity.










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1 comment:

Alisa said...

I have always struggled with science but I think it's because I never had a teacher like you! Your students look like they enjoy your class a lot! Wish there were more teachers like you.